Man returned and admitted being rejected (8)
I believe the answer is:
disowned
'being rejected' is the definition.
(thesaurus)
'man returned and admitted' is the wordplay.
'man' becomes 'Sid' (man's name).
'returned' shows that the letters should be reversed in order.
'and' is a charade indicator (letters next to each other).
'admitted' becomes 'owned' (own can mean to admit or acknowledge).
'sid' reversed gives 'dis'.
'dis'+'owned'='DISOWNED'
(Other definitions for disowned that I've seen before include "Rejected all connection with on downside" , "repudiated" , "cast aside" , "Denied having" , "Refused to be linked to (someone or something)" .)