Answer: itsdone

AnswerCrossword Clue
ITSDONE"That's all she wrote"
ITSDONECooking-show comment
ITSDONE"All over!"
ITSDONECook's announcement
ITSDONE"All finished!"
ITSDONE"That cake's been in the oven long enough"
ITSDONE"Dinner's ready"
ITSDONECook's call
ITSDONEPhrase accompanying a check
ITSDONEFinish line
ITSDONE"Fini!"
ITSDONE"There!"
ITSDONEFinish line?
ITSDONE'The end!'