Writes for right-winger creating unsettling narrative (5,5)
I believe the answer is:
ghost story
'unsettling narrative' is the definition.
'writes for right-winger' is the wordplay.
'writes for' becomes 'ghosts' (in ghostwriting).
'right-winger' becomes 'tory' (Tory is an example).
'ghosts'+'tory'='GHOST-STORY'
'creating' is the link.
(Other definitions for ghost story that I've seen before include ". . . one such [SCARY TALE]" , "One giving creeps" , "Frightful relation" .)