Leave with uncle (4)
I believe the answer is:
pawn
'uncle' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'leave with' is the wordplay.
I cannot really understand how this works, but
'with' could be 'w' (abbreviation) and 'w' is found in the answer.
The remaining letters 'pan' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for pawn that I've seen before include "Person used to gain an end" , "Chess piece; hock" , "Lend uncle" , "Chesspiece" , "Lowest ranking chessman" .)