Fiddles
I think it could be either:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fiddles</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Another definition for violins that I've seen is " Fiddles".)
(Other definitions for fidgets that I've seen before include "Displays restlessness" , "Restless folk" .)