Rise of a politician on right (4)
I believe the answer is:
ramp
'rise' is the definition.
(thesaurus)
'a politician on right' is the wordplay.
'politician' becomes 'mp'.
'on' means one lot of letters go next to another.
'right' becomes 'r' (common abbreviation).
'a'+'mp'='amp'
'amp' after 'r' is 'RAMP'.
'of' is the link.
(Other definitions for ramp that I've seen before include "An elevation for pram" , "Sloping path between levels" , "Sloping surface; swindle" , "Slope between levels" , "One with an inclination" .)