Grimm boy (6)
I believe the answer is:
hansel
'grimm boy' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hansel that I've seen before include "abandoned boy" , "Panto (part title)" , "Brother of 9 Down in Grimms' fairytale and opera by Engelbert Humperdinck" , "Brother to Gretel" , "Grimm child" .)