Doesn't hesitate (4)
I believe the answer is:
acts
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">doesn't hesitate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for acts that I've seen before include "Cast (anag) - performs" , "the entertainment for a revue?" , "Cast in major play sections" , "Pretends" , "these for variety show" .)