Civilian clothes (5)
I believe the answer is:
mufti
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">civilian clothes</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 mufti that I've seen before include "Civilian dress, worn by an off-duty soldier, say" , "Non-military clothing" , "Civvy dress" , "Soldier's civilian clothes" , "Muslim religious jurist" .)