Ready to go out of the house, temporarily (3)
I believe the answer is:
set
'ready to go' is the definition.
(I've seen this in another clue)
'out of the house temporarily' is the wordplay.
'out of' indicates the answer is hidden within the clue.
'SET' is hidden within 'the house temporarily'.
(Other definitions for set that I've seen before include "Badger's burrow" , "become firm" , "Solidified" , "Go below the horizon," , "Scenery etc. for a drama" .)