Abandoned drunk is being given shelter (8)
I believe the answer is:
disowned
'abandoned' is the definition.
(thesaurus)
'drunk is being given shelter' is the wordplay.
'drunk' becomes 'downed' (downing is a kind of drinking).
'being given shelter' is an insertion indicator (inserted letters are sheltered).
'downed' going around 'is' is 'DISOWNED'.
(Other definitions for disowned that I've seen before include "Refused to be linked to (someone or something)" , "Refused to acknowledge (someone)" , "repudiated" , "Rejected all connection with on downside" , "Denied having" .)