Score four playing without right winger, naturally (2,6)
I believe the answer is:
of course
'naturally' is the definition.
('of course' can be a synonym of 'naturally')
I don't understand the rest of the clue.
(Other definitions for of course that I've seen before include "About a series of lessons" , "Naturally, as one would expect" , "Without a doubt, as was to be expected" , "Naturally, goes without saying" , "Obviously!" .)