For good (11)
I believe the answer is:
permanently
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">for good</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for permanently that I've seen before include "Always" , "So as to last forever" , "For good" .)