Forest fledgling (5)
I believe the answer is:
owlet
'forest fledgling' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for owlet that I've seen before include "Offspring of the wise one?" , "Nestling" , "Baby nocturnal raptor" , "Young nocturnal flier" , "Junior member of parliament" .)