The term 'FILLED THE BILL' is an idiom that means to meet the requirements of a job or task. The crossword solutions for this term are ATE (3 letters) and SERVED (6 letters). ATE is a verb that means to consume food, while SERVED is a verb that means to provide something to someone else. Therefore, the phrase 'FILLED THE BILL' can be interpreted as having met the requirements of a job or task by consuming food or providing something to someone else.