Percussionist (7)
I believe the answer is:
drummer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">percussionist</span>' is the definition.<br/ ><span class="explanation-format__explanation">(drummer is a kind of percussionist)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for drummer that I've seen before include "player among the percussion" , "One using sticks" , "Musician" , "Type of percussionist" , "Band member" .)