Poker pot piece (4)
I believe the answer is:
chip
'poker pot piece' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for chip that I've seen before include "High ball" , "Sliver of wood or piece of potato" , "Small piece; golf shot" , "Gambling counter; piece of potato" , "Piece of potato (found on someone's shoulder?)" .)