Valet in husband's tavern, drunk (10)
I believe the answer is:
manservant
'valet' is the definition.
(a valet is a type of manservant)
'husband's tavern drunk' is the wordplay.
'husband's' becomes 'man's' (a married man).
'drunk' indicates anagramming the letters.
'tavern' is an anagram of 'ervant'.
'mans'+'ervant'='MANSERVANT'
'in' is the link.
(Other definitions for manservant that I've seen before include "Valet" , "Chap's assistant" , "footman" .)