Announced composer’s name (6)
I believe the answer is:
handle
'name' is the definition.
(a handle is a name)
'announced composer's' is the wordplay.
'announced' shows a homophone (sound like).
'composer' becomes 'Handel' (George Frideric Handel).
'handel' is a homophone of 'HANDLE'.
(Other definitions for handle that I've seen before include "Treat" , "Control - deal with - write about" , "Deal with; name (colloq.)" , "Manipulate; manage" , "Ability to walk on board ship" .)