Vicar meets a politician and pimp (6)
I believe the answer is:
revamp
'pimp' is the definition.
(both can mean to improve or make over)
'vicar meets a politician' is the wordplay.
'vicar' becomes 'rev' (reverend).
'meets' says to put letters next to each other.
'politician' becomes 'MP' (Member of Parliament).
'rev'+'a'+'mp'='REVAMP'
'and' acts as a link.
(Other definitions for revamp that I've seen before include "overhaul" , "Give new form to" , "Give makeover to" , "New and improved version" , "face-lift" .)