Loose flowing garment (4)
I believe the answer is:
robe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">loose flowing garment</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 robe that I've seen before include "Loose outer garment" , "Formal gown" , "judge's garment" , "Clerical garment" , "Ceremonial garb" .)