Unruly mob (6)
I believe the answer is:
rabble
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unruly mob</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rabble that I've seen before include "Person who stirs up feeling of mob" , "Person manipulating mob's passion" , "A disorderly crowd of unruly people" , "A mob of riffraff" , "Disorderly, loud crowd" .)