Answer: doggybag

AnswerCrossword Clue
DOGGYBAG

Source of tomorrow's lunch, perhaps

DOGGYBAG

Restaurant after-dinner convenience

DOGGYBAG

Takeout request?

DOGGYBAG
Stuffed diner's request
DOGGYBAG
Restaurant take-home holder
DOGGYBAGSomething you have filled when full
DOGGYBAGIt wraps scraps