The most common and most likely answer to this crossword clue is the 14 letter word SWEET-AND-SOUR
I've seen this crossword clue in Financial Times
S
W
E
E
T
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A
N
D
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S
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More clues leading to the result SWEET-AND-SOUR
Buddy explains!

The straight part
We know that "kind of food" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kind of food = sweet-and-sour.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 SWEET-AND-SOUR mean?
SWEET-AND-SOUR adjective- Between sweet and sour taste.
- Having both positive and negative traits, or inspiring conflicting good and bad feelings.