Weary judge heartlessly put on (5)
I believe the answer is:
jaded
'weary' is the definition.
(both can mean bored or tired of something)
'judge heartlessly put on' is the wordplay.
'judge' becomes 'j' (abbreviation for judge).
'heartlessly' means to remove the middle letters.
'put on' becomes 'added' (add can mean to put on).
'added' with its centre removed is 'aded'.
'j'+'aded'='JADED'
(Other definitions for jaded that I've seen before include "Decadent or worn out" , "Spent" , "Fatigued and bored" , "Exhausted - satiated" , "Very tired or fed up" .)