Caribbean ensemble (5,4)
I believe the answer is:
steel band
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">caribbean ensemble</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for steel band that I've seen before include "Musicians playing oil drums" , "Caribbean ensemble" , "(Players of) improvised drums" , "percussionists" , "Caribbean group" .)