Trounces (5)
I believe the answer is:
routs
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">trounces</span>' is the definition.<br/ ><span class="explanation-format__explanation">(routing is a kind of trouncing)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for routs that I've seen before include "drubbings" , "Decisively defeats" , "Utterly defeats" , "Thoroughly defeats" , "Trounces" .)