Utter failure (7)
I believe the answer is:
debacle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">utter failure</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for debacle that I've seen before include "Utter failure" , "foul-up" , "Disatrous collapse" , "Sudden disastrous collapse or defeat" , "A complete collapse or messy failure" .)