Mobsters (9)
I believe the answer is:
gangsters
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mobsters</span>' is the definition.<br/ ><span class="explanation-format__explanation">('gangster' can be a synonym of 'mobster')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for gangsters that I've seen before include "Groups of criminals" , "robbers" .)