Fixes a border, in a way (4)

I believe the answer is:

hems

(Other definitions for hems that I've seen before include "Stitched borders" , "Fringes" , "Bottom edges turned under and sewn" , "Stitched edges of cloth or garments" , "Stitched garment edges for Shem" .)

I've seen this clue in The New York Times.

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