Consumed over seven, say (3)
I believe the answer is:
ate
'consumed' is the definition.
(to eat is to consume food)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for ate that I've seen before include "Munched" , "Consumed food" , "Devoured" , "Worried" , "included in one's diet" .)