Deny judge employment (6)
I believe the answer is:
refuse
'deny' is the definition.
(deny can mean to refuse or reject)
'judge employment' is the wordplay.
'judge' becomes 'ref'.
'employment' becomes 'use' (how something is used).
'ref'+'use'='REFUSE'
(Other definitions for refuse that I've seen before include "Decline to take the rubbish" , "litter" , "Decline to accept - waste" , "Say no to - waste" , "household rubbish" .)