Use a needle (6)
'use a needle' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for stitch that I've seen before include "result of working with needle?" , "Sharp spasm of pain in the side" , "Loop of thread" , "Pain caused by running" , "Something surgeon provides" .)
'use a needle' is the definition.
(you use a needle when sewing)
This is all the clue.
(Other definitions for sew that I've seen before include "Work with needle and thread" , "Tack" , "Stitch with needle and thread" , "Use a needle and thread" , "Fasten with needle and thread" .)