The most common and most likely answer to this crossword clue is the 10 letter word PEPPERMINT
I've seen this crossword clue in The Guardian
P
E
P
P
E
R
M
I
N
T
More clues leading to the result PEPPERMINT
- On page record name in passport for sucker
- Sweet confection’s ultimate in licence for vitality?
- Vegetable, green and sweet
- Condiment and perfect herb
- Sweet style captured by pen-tip at work
- Go and allow to swallow new sweet
- A sweet spice that’s not been used
- Go with a fresh essence
- Go when given licence to acquire northern flavoured sweet
- Condiment with perfect sweet
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 = peppermint.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 PEPPERMINT mean?
PEPPERMINT noun- A hybrid herb of the mint family (Mentha × piperita), formed by crossing watermint and spearmint, which has a high menthol content and a sharp flavor and is used in cooking, especially in herb teas and in confections.
- A confection containing extract of peppermint.