Wear or scrape away (6)
I believe the answer is:
abrade
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">wear</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">scrape away</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 abrade that I've seen before include "Rub off or scrape away" , "Scrape away, erode" , "Wear away by friction" , "Wear away by rubbing, scrape" , "Wear away by rubbing (6)" .)