Supper, perhaps, in home, alone (4)
I believe the answer is:
meal
'supper perhaps' is the definition.
(supper is a kind of meal)
'in home alone' is the wordplay.
'in' says the answer is hidden in the clue.
'MEAL' is hidden within 'home alone'.
(Other definitions for meal that I've seen before include "Scoff" , "Grain ground to powder" , "Edible part of grain or pulse" , "Supper, e.g." , "Coarsely ground cereal seeds" .)