Bad handling (13)
I believe the answer is:
mismanagement
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bad handling</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 mismanagement that I've seen before include "Bad running (of something)" , "Bad handling" , "Bungling" , "Bad running (of company)" , "Poor running" .)