Pariah (7)
I believe the answer is:
outcast
'pariah' is the definition.
(I know that pariah can be written as outcast)
This is all the clue.
(Other definitions for outcast that I've seen before include "one's not admitted" , "Person rejected by a group or society" , "One excluded from group" , "Pariah, society reject" , "Social pariah or reject" .)