Soaks at home with a drink (7)
I believe the answer is:
retsina
'drink' is the definition.
(retsina is a kind of drink)
'soaks at home with a' is the wordplay.
'soaks' becomes 'rets' (retting is a kind of soaking).
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'with' says to put letters next to each other.
'rets'+'in'+'a'='RETSINA'
(Other definitions for retsina that I've seen before include "S European wine" , "Type of Greek wine" , "Greek white wine flavoured with resin" , "Flavoured Greek white wine - nastier brand" , "Nastier (anag) - white (or rose) wine" .)