Monk's garb (5)
I believe the answer is:
habit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">monk's garb</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for habit that I've seen before include "nun gets into" , "Addiction to a drug" , "bent" , "addictive practice" , "Usual practice; garment" .)