Standing and winning over Conservatives (7)
I believe the answer is:
upright
'standing' is the definition.
(I've seen this before)
'winning over conservatives' is the wordplay.
'winning' becomes 'up' (I've seen this in other clues).
'over' says to put letters next to each other.
'conservatives' becomes 'right' (I've seen this in other clues).
'up'+'right'='UPRIGHT'
'and' acts as a link.
(Other definitions for upright that I've seen before include "Erect - post" , "Virtuous" , "Good" , "Moral" , "In an erect position" .)