Go on a road as fugitive (7)
I believe the answer is:
runaway
'fugitive' is the definition.
(I've seen this before)
'go on a road' is the wordplay.
'go on' becomes 'run' (running is a kind of going on).
'road' becomes 'way' (I've seen this in other clues).
'run'+'a'+'way'='RUNAWAY'
'as' is the link.
(Other definitions for runaway that I've seen before include "such a success?" , "Del Shannon hit" , "One who has taken flight" , "Absconder" , "scooter?" .)