No longer lie about being an outcast (5)
I believe the answer is:
exile
'an outcast' is the definition.
(I've seen this in another clue)
'no longer lie about' is the wordplay.
'no longer' becomes 'ex' (prefix meaning former or onetime).
'about' indicates an anagram.
'lie' anagrammed gives 'ile'.
'ex'+'ile'='EXILE'
'being' is the link.
(Other definitions for exile that I've seen before include "Expulsion from one's country" , "Deportee" , "Send to live abroad" , "Person forced to live abroad" , "forced to leave" .)