Work for soloist and orchestra (8)
I believe the answer is:
concerto
'work for soloist and orchestra' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for concerto that I've seen before include "Work for soloist and orchestra" , "piece of music" , "Composition for accompanied soloist" , "Piece for soloist and orchestra" , "Solo/orchestra piece" .)