Subordinate from Virginia upset girl (6)
I believe the answer is:
vassal
'subordinate' is the definition.
(thesaurus)
'virginia upset girl' is the wordplay.
'virginia' becomes 'va' (US state abbreviation).
'upset' is a reversal indicator.
'girl' becomes 'lass' (lass is a kind of girl**).
'lass' backwards is 'ssal'.
'va'+'ssal'='VASSAL'
'from' acts as a link.
(Other definitions for vassal that I've seen before include "Person owing service to a feudal lord" , "Old retainer" , "Feudal subordinate" , "Retainer, dependant" , "One owed allegiance to a feudal lord" .)