Conservatives (6)
I believe the answer is:
tories
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">conservatives</span>' is the definition.<br/ ><span class="explanation-format__explanation">(informal term for the Conservative Party)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tories that I've seen before include "Informal members of Conservative party in England" , "Members of the British Conservative Party" , "Members of the English Conservative Party" , "Conservative-leaning politicians, from the Irish for 'robbers'" , "Old British Conservatives" .)