Embroider (3)
I believe the answer is:
sew
'embroider' is the definition.
(I know that embroider is a kind of sew a ornament)
This is the entire clue.
(Other definitions for sew that I've seen before include "Stitch with needle and thread" , "Tack" , "Work with needle and thread" , "Fasten with needle and thread" , "Use a needle and thread" .)