Introverted (9)
I believe the answer is:
withdrawn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">introverted</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(Other definitions for withdrawn that I've seen before include "Retired" , "taken out" , "Private" , "Shrinking" , "Introverted" .)