Amiable choral piece – on the piano! (3)
I believe the answer is:
pal
'amiable choral' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'piece on the piano' is the wordplay.
'piece' becomes 'al' (I can't explain this - if you can you should believe this answer much more).
'on' is a charade indicator (letters next to each other).
'the piano' becomes 'p'.
'al' put after 'p' is 'PAL'.
Can you help me to learn more?
(Other definitions for pal that I've seen before include "Close friend" , "Friend (colloq.)" , "Bud" , "Crony" , "Buddy, chum" .)