Perform in a play (3)
I believe the answer is:
act
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">perform in a play</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for act that I've seen before include "Parliamentary decree" , "Do something (on stage?)" , "Behave like thespian" , "Major section of a play" , "law passed" .)