Requites (6)
I believe the answer is:
repays
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">requites</span>' is the definition.<br/ ><span class="explanation-format__explanation">('repay' can be a synonym of 'requite')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for repays that I've seen before include "Settles debt" , "Discharges debt" , "coughs up again" , "Returns money loaned" , "Returns favour or debt" .)