Make reparation (5)
I believe the answer is:
atone
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">make reparation</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for atone that I've seen before include "Make good" , "Expiate" , "Make redress" , "Make amends (for something)" , "remedy" .)