The most common and most likely answer to this crossword clue is the 5 plus 4 letter word PETIT FOUR
I've seen this crossword clue in Financial Times
P
E
T
I
T
F
O
U
R
More clues leading to the result PETIT FOUR
- Fancy outfit rep presented in a new way
- Figure following e.g. dog with the thing's snack
- Bite dog, maybe and bite edges off 4
- It’s fed to cat perhaps for keeping you sweet
- Miniature treat – favourite square describing it?
- Small cake, favourite one with number around end of buffet
- Prepared to erupt if getting little cake?
- Winger after training with team gets cake or biscuit
- I travel widely, covering France in pursuit of favourite biscuit
- Biscuit, favoured thing with bridge players
Buddy explains!
The straight part
We know that "sweet" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sweet = petit four.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.