Fitting end for a piece of wood (5)
I believe the answer is:
tenon
'wood' is the definition.
(I know that tenon is a wood)
'fitting end for a piece of' is the wordplay.
I cannot quite see how this works, but
'piece' could be 'n' (abbreviation for Knight in chess notation) and 'n' is found in the answer.
'of' could be 'o' and 'o' is found within the answer.
The remaining letters 'ten' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tenon that I've seen before include "Joint - tonne (anag)" , "Tongue of wood, fits into mortise" , "Shaped end of piece of wood for slotting into a hole." , "Connection" , "bit of wood?" .)