Right-leaning politician stripped off: no love, not one (6)
I believe the answer is:
italic
'right-leaning' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for italic that I've seen before include "Group of languages" , "Sloping font" , "leaning over" , "Inclined to emphasise" , "identifies a branch of languages?" .)