Political group (5)
I believe the answer is:
party
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">political group</span>' is the definition.<br/ ><span class="explanation-format__explanation">(a political party)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for party that I've seen before include "Shooting weapon" , "Social occasion - political group" , "Political organization" , "MP's faction" , "eg Labour, Conservative" .)