Name of composer heard (6)
I believe the answer is:
handle
'name' is the definition.
(a handle is a name)
'composer heard' is the wordplay.
'composer' becomes 'handel' (George Frideric Handel).
'heard' shows a homophone (sound like).
'handel' sounds like 'HANDLE'.
'of' acts as a link.
(Other definitions for handle that I've seen before include "Cope with" , "Manage - touch - hilt" , "Trade in" , "Deal with - one's name (slang)" , "Manipulate; manage" .)