Suffers defeat (5)
I believe the answer is:
loses
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">suffers defeat</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for loses that I've seen before include "Mislays or is defeated" , "Is unable to find" , "Goes down" , "Fails to win" , "Misoplaces" .)