Generous fellows who compose rondos (6)
I believe the answer is:
donors
'generous fellows' is the definition.
The definition and answer can be both people as well as being plural nouns.
Maybe you can see an association between them that I don't see?
'compose rondos' is the wordplay.
'compose' indicates anagramming the letters.
'rondos' anagrammed gives 'DONORS'.
'who' is the link.
Can you help me to learn more?
(Other definitions for donors that I've seen before include "They give to others, maybe blood" , "Givers as of blood" , "presenters" , "They give things including blood" , "They give, blood say" .)