Histrionic (10)
I believe the answer is:
theatrical
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">histrionic</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for theatrical that I've seen before include "Artificial and exaggerated" , "Showbiz" , "affected" , "Relating to acting/actors" , "Actor" .)