Without joins (8)
I believe the answer is:
seamless
'without joins' is the definition.
('join' can be 'seam' (seaming is a kind of joining) so maybe 'without joins' can be ''seamless')
This is the entire clue.
(Other definitions for seamless that I've seen before include "Showing no join" , "Without apparent joins" , "Of cloth, made without a join or stitches" , "Without obvious joins" , "Showing no joins" .)