Embroidery on canvas (11)
I believe the answer is:
needlepoint
'embroidery on canvas' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for needlepoint that I've seen before include "Embroidery - I needn't lope (anag)" , "Closely stitched embroidery" , "craft" , "Closely-stitched embroidery" , "Embroidery on canvas" .)