The most common and most likely answer to this crossword clue is the 7 letter word BYWORDS
I've seen this crossword clue in Financial Times
B
Y
W
O
R
D
S
More clues leading to the result BYWORDS
Buddy explains!

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 BYWORDS mean?
BYWORDS noun- A proverb or proverbial expression, common saying; a frequently used word or phrase.
- A characteristic word or expression; a word or phrase associated with a person or group.
- Someone or something that stands as an example (i.e. metonymically) for something else, by having some of that something's characteristic traits.
- An object of notoriety or contempt, scorn or derision.
- A nickname or epithet.