The twist here is:
Two cells of each answer can contain one of two letters, giving a total of four possible solutions per clue
Completed grid:
Across
- A fishy complaint
CARP - To complain as well as a type of fish
A covering sheet
TARP - Short for tarpaulin
A pack ox's burden
CART - An ox might pull a cart
A sour, sweet treat.
TART - A desert (sweet treat) as well as meaning sour
- A big, furry mammal,
BEAR
A bubble of water,
BEAD
A term of endearment,
DEAR
A term for the slaughtered.
DEAD
- An Islamic official,
DIVAN - Can be a title applied to high officials in the Middle East
A Baldur's Gate ranger,
KIVAN - The name of a ranger in Baldur's Gate
Popular women,
DIVAS - A term used for popular female singers
Spiritual chambers.
KIVAS - A kiva is a room used by Puebloans for religious rituals
- An Italian actress,
DUSE - Eleonora Duse was an Italian actress
A dry, hard bread,
RUSK
A deceptive plot,
RUSE
Means darkness ahead.
DUSK - The period before night time
- To a smaller extent,
LESS
Where one might be flappin',
NEST - A bird might be flapping in a nest
A monster's abode,
NESS - Loch Ness is the home of the Loch Ness monster
For fear it should happen.
LEST - Meaning for fear of something undesirable happening
- A place to play darts,
LAWN - Darts can be played on a lawn (although I prefer the pub)
A piece least elite,
PAWN - Generally the least powerful piece in chess
Unbreakable rules,
LAWS
Two small, furry feet.
PAWS
- An Iron Age Hallstatt,
CELT - Hallstatt was an Iron Age Celtic culture
A room in a ward,
CELL
A ring-a-ding thing,
BELL
A flexible cord.
BELT
- Shots past the target,
OVERS - Having gone past the target, one has overshot
Direct nowhere near,
AVERT - to ward off
Alleges with poise,
AVERS - To allege as a fact
Incredibly clear.
OVERT
- Islamic religion,
DEEN - A term loosely associated with Islamic religion
A hooved, woodland creature,
DEER
To once have been viewed,
SEEN
A prophetic preacher.
SEER
- Sensory helpers,
EARS
A mountainous lake,
TARN - A mountain lake
Feathers' ancestor,
TARS - Comes before feathers in the phrase 'tar and feather'
A way you can make.
EARN - To make money
Down
- A super descriptor,
CAPED - As in 'Batman: The Caped Crusader'
A frivolous sin,
CAPER - A frowned upon activity that is nevertheless fairly harmless
Adhered by a band,
TAPED
To gradually thin.
TAPER
- A very short moment,
TRICE
A thing you might play,
TRICK - You might play a trick on someone
A poke with a needle,
PRICK
A thing you might pay.
PRICE - You might pay the price
- A slow, prolonged accent,
DRAWL
An unstructured scuffle,
BRAWL
Sketched with a pencil,
DRAWN
Impeccable muscle.
BRAWN
- Fasten together,
RIVET
Alternative turf,
DIVET - Alternative spelling of divot
Rends from the bone,
RIVES - To split or tear apart violently
Goes under the surf.
DIVES
- Killed, as a dragon,
SLEW - One slays a dragon
A gradual pace,
SLOW
A mix of ingredients,
STEW
To put in its place.
STOW
- A brief, reddish glow,
Complete lack of sweat,
EASE - E.g. done with ease, without having to try
The edge of a rooftop,
EAVE
With or, makes a threat.
ELSE - As in 'or else'
- Parts of a sneaker,
LACES
Interrelated,
LACED
Walks back and forth,
PACES
Measured or rated.
PACED
- A male, Slavic title,
NEVEN - A Slavic masculine name
To zero amount,
NEVER - As in something that never happens happens zero amount of times
Divide into parts,
SEVER
A continental count.
SEVEN - The number of continents, by most standards
- A purposeful capsule,
Afflicted by bane,
CURST - Alternative spelling of cursed
Suddenly broken,
BURST
A vocal disdain.
CURSE
- A Caribbean dwarf,
TINEN - A Haitian Creole word for dwarf (struggling by this stage were you?!)
Things touching the plate,
TINES - The tines or prongs of a fork might touch a plate
Flax fiber fabric,
LINEN
Places to wait.
LINES