Vagrant’s cunning raised by political representative (5)
I believe the answer is:
tramp
'vagrant's' is the definition.
(I've seen this before)
'cunning raised by political representative' is the wordplay.
'cunning' becomes 'art' (both can mean artfulness or trickery).
'raised by' is a reversal indicator.
'political representative' becomes 'MP' (Member of Parliament).
'art' in reverse letter order is 'tra'.
'tra'+'mp'='TRAMP'
(Other definitions for tramp that I've seen before include "cargo boat" , "Vagrant, drifter" , "Walk heavily, as when weary, or through mud" , "Traveller" , "I might hitch a lift" .)