Hand-held percussion instrument (6)
I believe the answer is:
maraca
'hand-held percussion instrument' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for maraca that I've seen before include "Instrument made from a filled gourd" , "Percussion instrument played in pairs" , "one easily rattled?" , "Instrumental gourd" , "One of a pair used by Spanish dancer" .)