Theatrical failure (4)
I believe the answer is:
flop
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">theatrical failure</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for flop that I've seen before include "Community cards in poker" , "crash" , "Complete failure" , "Total failure; fall heavily" , "Fiasco" .)