Has wrongly won a point (4)
I believe the answer is:
owns
'has' is the definition.
('own' can be a synonym of 'have')
'wrongly won a point' is the wordplay.
'wrongly' indicates anagramming the letters (I've seen this in other clues).
'a point' becomes 's' (South).
'won' with letters rearranged gives 'own'.
'own'+'s'='OWNS'
(Other definitions for owns that I've seen before include "Belongs to" , "uses" , "Confesses" , "Admits possession" , "Possesses" .)