Sounds ready for home (4)
I believe the answer is:
sett
'home' is the definition.
(type of animal home)
'sounds ready' is the wordplay.
'sounds' indicates a 'sounds like' (homophone) clue.
'ready' becomes 'set' (set can mean ready or prepared).
'set' is a homophone of 'SETT'.
'for' is the link.
(Other definitions for sett that I've seen before include "Underground 10 [HOUSE]" , "beastly home" , "habitat" , "Retreat" , "Badger's earth" .)