Skirt fold (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">skirt fold</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for pleat that I've seen before include "Fold in material" , "Double fold in a garment" , "Fold in clothing" , "Fold pressed or stitched into cloth" , "Flat fold of cloth" .)