Fiddle (6)
I believe the answer is:
fidget
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fiddle</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for fidget that I've seen before include "Make nervous restless movements" , "appear nervous" , "Move nervously or impatiently" , "Restless person" , "Gifted (anag.)" .)