Person (5,5)
'person' is the definition.
(I know that person can be written as human)
This is the entire clue.
(Other definitions for human that I've seen before include "Anthropoid" , "Characteristic of people" , "Mortal; compassionate" , "Of the species of homo sapiens" , "Genial, kind" .)
(Other definitions for human being that I've seen before include "soul" , "person" .)