Father's drunk a very English Brut, perhaps (10)
I believe the answer is:
aftershave
'brut perhaps' is the definition.
(Brut is a brand of aftershave)
'father's drunk a very english' is the wordplay.
'drunk' indicates anagramming the letters.
'very' becomes 'v' (abbreviation).
'english' becomes 'e' (abbreviation).
'fathers' is an anagram of 'aftersh'.
'aftersh'+'a'+'v'+'e'='AFTERSHAVE'
(Other definitions for aftershave that I've seen before include "liquid splashed in bathroom" , "Soothing spirit" , "alcohol to splash on, say" , "styptic lotion" , "Dad's expected present?" .)