Total disaster (11)
I believe the answer is:
catastrophe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">total disaster</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 catastrophe that I've seen before include "Sudden disaster" , "disastrous outcome" , "Event causing much damage" , "Event causing great damage" , "Calamity" .)