The most common and most likely answer to this crossword clue is the 10 letter word MEMORANDUM
I've seen this crossword clue in The Daily Telegraph
M
E
M
O
R
A
N
D
U
M
More clues leading to the result MEMORANDUM
- Servant crosses overthrown city nearly speechless delivering note
- Model modern mum snatching a minute
- A reminder from mother to ring joiner after more damage
- Unconventional mum moaned dreadfully about teacher’s last written reminder
- Brief note written out in full
- Note brief tribute with sign of hesitation
Buddy explains!

The straight part
We know that "Note" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case note = memorandum.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 MEMORANDUM mean?
MEMORANDUM noun- A short note serving as a reminder.
- A written business communication.
- A brief diplomatic communication.
- A page in an annual publication honoring the memory of a person who died during the past year.