Virginia gets one through (3)
I believe the answer is:
via
'through' is the definition.
(I've seen this before)
'virginia gets one' is the wordplay.
'virginia' becomes 'va' (US state abbreviation).
'gets' indicates putting letters inside (gets can mean captures or absorbs).
'one' becomes 'i' (Roman numeral).
'va' going around 'i' is 'VIA'.
(Other definitions for via that I've seen before include "By means of" , "Going through" , "Passing through" , "By way of - in Latin" , "A Roman way" .)