Repair badly (5)
I believe the answer is:
bodge
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">repair badly</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 bodge that I've seen before include "spoiled work" , "Repair clumsily (colloq.)" , "Clumsily repair (something)" , "Make or repair badly" , "Unsatisfactory repair" .)