Cobblers pursue proctor's attendant (7)
I believe the answer is:
bulldog
'proctor's attendant' is the definition.
Both the definition and answer are adjectives. Perhaps there's a link between them I don't understand?
'cobblers pursue' is the wordplay.
'cobblers' becomes 'bull' (slang for a man's testicles).
'pursue' becomes 'dog' (dogging is a kind of pursuing).
'bull'+'dog'='BULLDOG'
Can you help me to learn more?
(Other definitions for bulldog that I've seen before include "Sort of clip" , "British canine emblem" , "Courageous canine - clip" , "Canine (with British spirit?)" , "Person of obstinate courage" .)