Social outcast (6)
I believe the answer is:
pariah
'social outcast' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pariah that I've seen before include "Outcast (state)" , "Unacceptable person" , "Person despised and rejected by society" , "person shunned" , "An untouchable" .)