West Indian dance music (7)
I believe the answer is:
calypso
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">west indian dance music</span>' is the definition.<br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for calypso that I've seen before include "Popular West Indian song" , "WI song" , "W. Indies music" , "West Indian music style" , "island song" .)