James Bond, perhaps, a man of refinement (5)
I believe the answer is:
agent
'james bond' is the definition.
(James Bond is an example)
'a man of refinement' is the wordplay.
'man of refinement' becomes 'gent' (gentleman).
'a'+'gent'='AGENT'
'perhaps' acts as a link.
(Other definitions for agent that I've seen before include "One may be working" , "Actor" , "Dealer" , "Spy; representative" , "Catalyst" .)