Regrets (4)
I believe the answer is:
rues
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">regrets</span>' is the definition.<br/ ><span class="explanation-format__explanation">('rue' can be a synonym of 'regret')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for rues that I've seen before include "Is sorry for - plants" , "Bemoans" , "Regrets, to be sure" .)