Tear in jumper I purchased (3)
I believe the answer is:
rip
'tear' is the definition.
('rip' can be a synonym of 'tear')
'in jumper i purchased' is the wordplay.
'in' says the answer is hidden in the clue.
'RIP' is hidden in the letters of 'jumper i purchased'.
(Other definitions for rip that I've seen before include "comment on one passing" , "Letters often seen on gravestone" , "Tear (e.g. cloth)" , "death wish" , "The familiar Mr Van Winkle" .)