Clannish (7)
I believe the answer is:
cliquey
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">clannish</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for cliquey that I've seen before include "Like faction" , "Pretentiously exclusive" , "Socially exclusive" .)