Hiding her cub, angelic little one! (6)
I believe the answer is:
cherub
'little one' is the definition.
(thesaurus)
'hiding her cub' is the wordplay.
'hiding' indicates putting letters inside.
'her' put within 'cub' is 'CHERUB'.
'angelic' is the link.
This may not be correct. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for cherub that I've seen before include "Sweet little baby" , "sweet infant" , "A heavenly baby" , "Sweet, innocent child" , "A heavenly winged babe" .)