Piece of music making man money, we hear (7)
I believe the answer is:
rondeau
'piece of music' is the definition.
'man money we hear' is the wordplay.
I cannot quite understand how this works, but
'man' could be 'ron' (I've seen this before) and 'ron' is located in the answer.
This may be the basis of clue (or it may be nonsense).
'making' acts as a link.
(Other definitions for rondeau that I've seen before include "Musical composition; poem of 13/15 lines" , "Sort of poem" , "Type of poem" , "Form of verse by Swinburne" , "Form of poem" .)