Cold-shouldered (7)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cold-shouldered</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 shunned that I've seen before include "expelled" , "Boycotted and avoided" , "Persistently avoided" , "Ostracised, steered clear of" , "Eschewed" .)