The most common and most likely answer to this crossword clue is the 7 letter word PASTIES
I've seen this crossword clue in The Guardian
P
A
S
T
I
E
S
More clues leading to the result PASTIES
Buddy explains!

The straight part
We know that "Food" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case food = pasties.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PASTIES mean?
PASTIES noun- An item worn (often by strippers) to conceal one's nipples.
- A type of seasoned meat pie, usually of a semicircular or distinctive shape.
- A circular, battered and deep-fried meat pie usually consisting of minced pork, onion, potato and seasoning and served in a bap or with chips. A peculiarity of Northern Irish "chippy" cuisine, rarely (if ever) seen outside the area.
- (chiefly in the plural) A small item of clothing that conceals little more than the nipple of a woman's breast, primarily worn by female exotic dancers.
- A type of seasoned meat and vegetable hand pie, usually of a semicircular shape.