The most common and most likely answer to this crossword clue is the 3 plus 4 letter word SET DOWN
I've seen this crossword clue in The Sunday Telegraph
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More clues leading to the result SET DOWN
Buddy explains!
The straight part
We know that "Note/behind in tennis match" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case note/behind in tennis match = set down.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 SET DOWN mean?
SET DOWN noun- The act of setting down something or someone.
- The act of descending onto a surface (of an aircraft or spacecraft).
- The humbling of a person by act or words.
- A retort or a reproof that has a humbling effect.
- A sit-down meal eaten by a tramp; a charitable meal provided to a tramp in the giver's home.
- A person’s buttocks.