One awful trick for right-winger (6)
I believe the answer is:
neocon
'right-winger' is the definition.
(I've seen this before)
'one awful trick' is the wordplay.
'awful' indicates anagramming the letters.
'trick' becomes 'con' (a con is a fraud or trick).
'one' with letters rearranged gives 'neo'.
'neo'+'con'='NEOCON'
'for' is the link.
(Other definitions for neocon that I've seen before include "Right-wing American" , "A right winger" , "Someone advocating a new form of democratic capitalism" , "politician on the right" , "A supporter of the policies of President George Bush? (abbr)" .)