Drinking house has attractive quality, do you not think? (5)
I believe the answer is:
innit
'do you not think?' is the definition.
'drinking house has attractive quality' is the wordplay.
'drinking house' becomes 'inn'.
'has' means one lot of letters go next to another.
'attractive quality' becomes 'it' (referring to a certain charisma, talent, etc.).
'inn'+'it'='INNIT'
(Other definitions for innit that I've seen before include "that produces stress for some" , "Isn't it (sl.)" , "word of emphasis" , "Common question" , "tag question" .)