The most common and most likely answer to this crossword clue is the 7 letter word SCRIBES
I've seen this crossword clue in Independent
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More clues leading to the result SCRIBES
Buddy explains!

The straight part
We know that "writers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case writers = scribes.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 SCRIBES mean?
SCRIBES noun- Someone who writes; a draughtsperson; a writer for another; especially, an official or public writer; an amanuensis, secretary, notary or copyist.
- A writer and doctor of the law; one skilled in the law and traditions; one who read and explained the law to the people.
- A very sharp, steel drawing implement used in engraving and etching, a scriber.
- (in particular) A journalist.