Bird carried by some musicians (3)
I believe the answer is:
emu
'bird' is the definition.
(emu is a kind of bird)
'carried by some musicians' is the wordplay.
'carried by' indicates the answer is hidden within the clue.
'EMU' is hidden in the letters of 'some musicians'.
(Other definitions for emu that I've seen before include "Native Australian bird" , "Aussie runner" , "that doesn't get off the ground" , "European project" , "it'll never fly!" .)