Popular music of Jamaican origin (6)
I believe the answer is:
reggae
'popular music of jamaican origin' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for reggae that I've seen before include "Popular music of Jamaican origin" , "Type of West Indian music" , "West Indian music with strong subsidiary beat" , "Jamaican musical style" , "A Caribbean music style" .)