Unfortunate person (6)
I believe the answer is:
wretch
'unfortunate person' is the definition.
(wretch is a kind of unfortunate person)
This is the entire clue.
(Other definitions for wretch that I've seen before include "Someone to be pitied" , "Poor unfortunate soul" , "A pitiful, unfortunate person" , "Unhappy person" , "A poor miserable person" .)