At home glued to, then going out to have a drink (7)
I believe the answer is:
indulge
'a drink' is the definition.
(thesaurus)
'at home glued to then going out' is the wordplay.
I cannot quite understand how this works, but
'at' could be 'in' (synonymous in some cases - eg at school, in school) and 'in' is found in the answer.
an anagram of 'glued' is 'dulge' which is within the answer.
No letters remain.
This explanation may well be incorrect...
'to have' is the link.
Can you help me to learn more?
(Other definitions for indulge that I've seen before include "Honour" , "pet" , "Satisfy (an interest)" , "Allow (someone) to enjoy a pleasure" , "Enjoy to excess" .)