Virtually, practically (2,4,2)
I believe the answer is:
as good as
I believe this clue is a double definition.
'virtually' is the first definition.
(I've seen this before)
'practically' is the second definition.
(I've seen this in another clue)
(Other definitions for as good as that I've seen before include "'Enough is . . . . . . . . a feast' (2.4.2)" , "of the same standard" , "Practically" , "effectively" , "Very nearly" .)