To solve this type of riddle you must find 2 or more words that are homonyms or homophones that have a different meaning, A.K.A. teapots, that belong to a related set or group. If you have any confusion it tends to make more sense after seeing an example so here is a past one done by me and here is one done by @AHKieran.
My third word seemed to be giving people some difficulty so I added a couple words that should narrow people's thoughts more. Next time I'll make sure my clues don't lead to as many possible answers.
My first word's first teapot is number one
My second word's first teapot you'll find with a pirate on the run
My third word's first teapot famous fourth encloses the scene
My first word's second teapot is small and green
My second word's second teapot is a game with a mate
My third word's second teapot structurally is first-rate
What are all the words and how do they relate?
Hint for the set:
The words one, two and three,
All are a type of me.
But I am a teapot too you'll see.
My first is something insane.
My second often spread on something plain.
My third, the worst can be quite sensitive to pain
P.S. You don't have to identify/explain the teapots of the set. The set just happened to also have multiple meanings and this seemed like a good way to help guide people to the solution.
Added some more clues but had to change the order to make the rhyming work better in my head. Sorry if that causes any confusion.