My prefix cools you down.
My suffix is way up high.
My infix is a single noun.
My whole is gold, no lies.
Hint (added more and more):
🥇 *(digital)*💯
Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. It only takes a minute to sign up.
Sign up to join this communityI think it is
FANATIC
My prefix cools you down.
a FAN can cool you down
My suffix is way up high.
an ATTIC is the highest room in a house
My infix is a single noun.
TI is a single noun indicating a musical note
My whole is gold, no lies.
FANATIC is a digital gold award/badge (as opposed to the bronze or silver badges) given by the well known site puzzling.stackexchange for visiting the site on 100 successive days (with out resting; lie is a synonym for rest); so therefore... no lies!
This also matches the hint.
Let me have another crack at this bad boy:
Stonefly
because
1) Stone is notoriously cold to the touch and has a cooling effect hence the popular dictum stone-cold
2) Fly, when objects or animals fly, they are often found to be high up above
3) One is a noun and single is a rather apt description of it
4) Stoneflies can be yellowish/gold in colour
I think the answer is
Honest
My prefix cools you down.
H, or Hydrogen is very cold in liquid form, and is used to freeze things.
My suffix is way up high.
NEST is often up in a tree or another high place.
My infix is a single noun.
ONE, a single number and can be used a noun
My whole is gold, no lies.
If you have gold, it is important to get an honest appraisal or someone might try to cheat you out of it. Also an honest person tells no lies.
Probably not right, but close enough to try.
My prefix cools you down.
N - Nitrogen ('N' on the periodic table); liquid nitrogen is very cold
My suffix is way up high.
He - Helium ('He' on the periodic table); helium gas is light and when filling a balloon propels it high into the air
My infix is a single noun.
Ich - this is a stretch, but it is a word for a tropical fish disease
My whole is gold, no lies.
Niche - also a stretch, but one definition is "an ornamental recess in a wall or the like, usually semicircular in plan and arched, as for a statue or other decorative object.", so a gold trophy or medal could fill a niche in someone's wall.
It may be
solid
because:
My prefix cools you down.
SO, or significant other, can cool you down metaphorically if you're angry/upset
My suffix is way up high.
lid, it's always the highest point of the object
My infix is a single noun.
oli - The Oli (Hawaiian Chant) falls into two broad categories, mele oli and mele hula. Mele oli are chants delivered with no musical instruments and are generally performed by one individual. Regardless, the chant itself is a singular noun.
My whole is gold, no lies.
solid, if there's no lies then it's solid gold, rather than plated or hollow
Please may this be right
GASOLINE
Prefix GAS
Suffix LINE as in the over head lines for electricity
Infix SOLI
Whole GASOLINE... is golden in colour.
The clues I guess is reffering to the digits we see when filling the gas tank to tell us the price
I wish it were this, though I don't see how all of the pieces fit perfectly:
Cryptocurrency
My prefix cools you down:
Often crypts are underground and have a cool temperature.
My suffix is way up high:
Depending on where you are your currency could be worth a lot I suppose?
My infix is a single noun:
Cur is a noun (insult).
My whole is gold, no lies:
One of the main ideas in cryptocurrency is a distributed ledger which prevents lies. It's also like digital "gold" as hinted.
Giving this a shot:
Halcyon
My prefix cools you down.
My suffix is way up high.
On meaning "I put the food on the clouds"
My infix is a single noun.
Cy can be short for cyan, cyanide etc.
My whole is gold, no lies.
Halcyon's synonyms have "golden" in it, and halcyon's meaning is calm and peaceful.