Suture (6)
I believe the answer is:
stitch
'suture' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stitch that I've seen before include "Sort of pain" , "Link, loop or knot made in knitting or sewing" , "Perform final act in theatre" , "Pain in the side brought on by exercise" , "One's in time to save eight others" .)