Answer: digin

AnswerCrossword Clue
DIGIN"Start eating!"
DIGINStart enthusiastically
DIGINSet resolutely to work.
DIGINGet to work.
DIGINGet to work: Colloq.
DIGINEntrench oneself.
DIGINFall to.
DIGINTackle
DIGINEntrench
DIGINStart vigorously
DIGINHost's suggestion at dinner
DIGINStart-of-meal comment
DIGINExhortation after grace
DIGIN"Go ahead and eat!"
DIGINCook's words
DIGINStart putting stuff away?
DIGIN'Eat up!'
DIGINLenny Kravitz '01 hit
DIGIN'01 Lenny Kravitz hit
DIGINEntrench oneself
DIGINPrepare to hold out
DIGINHost's invitation, maybe
DIGINDinner host's utterance
DIGINPost-grace exhortation
DIGINWhat often follows grace
DIGIN"Enjoy your meal!"
DIGINPrepare for a stand
DIGINAttack the food
DIGIN"Let's eat!"
DIGIN"Eat up!"
DIGINPrepare for an attack
DIGIN"Mangia!"
DIGIN"Eat hearty!"
DIGIN"Eat! Eat!"
DIGINCook's exhortation
DIGIN"Let the feast begin!"
DIGINEat
DIGINChow down
DIGINWords after grace
DIGINAttack the meal