Band member (8)
I believe the answer is:
musician
'band member' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for musician that I've seen before include "Minus CIA, one can compose or play" , "Eg, singer, instrumentalist" , "Cellist or pianist, say" , "Trombonist or drummer, say" , "Instrumentalist, player" .)