Blot, stain (3)
I believe the answer is:
mar
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">blot</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">stain</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for mar that I've seen before include "Disfigure" , "Spoil or deface" , "Ram into and spoil" , "Spoil stuff" , "Detract from" .)