Bird’s name given to music party (5)
I believe the answer is:
raven
'bird's' is the definition.
(raven is a kind of bird)
'name given to music party' is the wordplay.
'name' becomes 'n' (common abbreviation e.g. on forms).
'given to' means one lot of letters go next to another.
'music party' becomes 'rave' (party with dance music).
'n' after 'rave' is 'RAVEN'.
(Other definitions for raven that I've seen before include "flesh-eating bird" , "Bird with hoarse, croaking cry" , "Flier" , "Big black bird" , "Tower of London bird" .)