Jamaican music style (6)
I believe the answer is:
reggae
'jamaican music style' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for reggae that I've seen before include "W.I. music" , "A Caribbean music style" , "Music style from Jamaica" , "Popular music of the West Indies" , "West Indian music with strong subsidiary beat" .)