Mending (6)
I believe the answer is:
fixing
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mending</span>' is the definition.<br/ ><span class="explanation-format__explanation">('fix' can be a synonym of 'mend')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fixing that I've seen before include "Securing; putting right" , "Repairing" , "Attaching securely" .)