Run riot (7)
I believe the answer is:
rampage
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">run riot</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 rampage that I've seen before include "Destructive spree" , "Fury" , "Dash around violently" , "Charge around being wild and destructive" , "Map gear (anag.)" .)