Outworn (5)
I believe the answer is:
jaded
'outworn' is the definition.
('jade' can be a synonym of 'outwear')
This is all the clue.
(Other definitions for jaded that I've seen before include "Very tired or bored stiff" , "Bored, having had too much of something" , "Worn out or bored" , "Very tired or fed up" , "Decadent or worn out" .)