Civvies (5)
I believe the answer is:
mufti
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">civvies</span>' is the definition.<br/ ><span class="explanation-format__explanation">(both can mean non-uniform)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for mufti that I've seen before include "Plain clothes worn by soldier" , "Civvy dress" , "Civilian dress, in army terms" , "Muslim religious jurist" , "Plain clothes - Muslim legal expert" .)