Hatchling's home (4)
I believe the answer is:
nest
'hatchling's home' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nest that I've seen before include "Rook's residence?" , "Accommodation for hobby, say" , "Stack of tables" , "Snuggle in like bird" , "Cosy home like bird's" .)