Bath water has Virginia lifting leg (4)
I believe the answer is:
avon
'bath water' is the definition.
(I've seen this in another clue)
'virginia lifting leg' is the wordplay.
'virginia' becomes 'va' (US state abbreviation).
'lifting' says the letters should be written in reverse.
'leg' becomes 'on' (cricket term, fielding positions).
'va' backwards is 'av'.
'av'+'on'='AVON'
'has' acts as a link.
(Other definitions for avon that I've seen before include "Former English county" , "River joining Bath with Bristol" , "Shakespeare was known as the Bard of . . . ." , "English river, flows through Stratford" , "Shakespeare its swan" .)