Sew (4)
'sew' is the definition.
(I know that sew can be written as stitch)
This is the entire clue.
(Other definitions for stitch that I've seen before include "Sharp pain in side of body caused by exercise" , "result of working with needle?" , "Sharp spasm of pain in the side" , "Piece of needlework" , "Pain in the side brought on by exercise" .)
'sew' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for darn that I've seen before include "Blow" , "Mend with a needle" , "Mend (e.g. socks)" , "Repair (sock)" , "Repair (with needle)" .)