Stitched edge (3)
I believe the answer is:
hem
'stitched edge' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for hem that I've seen before include "Finished edge of a piece of cloth" , "A stitched border of cloth" , "Part of skirt" , "Border; fringe" , "Sewn edge to fabric" .)