Overcomes (7)
I believe the answer is:
masters
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">overcomes</span>' is the definition.<br/ ><span class="explanation-format__explanation">(mastering is a kind of overcoming)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for masters that I've seen before include "Boys" , "Artists of consummate skill" , "Male teachers" , "competition today" , "Could be checkers" .)