Unafraid (8)
I believe the answer is:
fearless
'unafraid' is the definition.
(I know that unafraid can be written as fearless)
This is all the clue.
(Other definitions for fearless that I've seen before include "Oblivious of dangers or perils" , "Oblivious of dangers or resolute in facing them" , "Indomitable" , "game?" , "Intrepid" .)