The most common and most likely answer to this crossword clue is the 5 letter word PROSE
I've seen this crossword clue in The Times
P
R
O
S
E
More clues leading to the result PROSE
- Page by girl, not poetic writing
- Speaker’s arguments for ordinary writing
- Some writing quietly got more intense?
- Experts on English translation exercise
- Writing supporting southeast
- . Writing in support of case of sabotage
- Type of writing of period seen regularly
- Priest stood up to deliver dull discourse
- Sue ignoring charming writing
- Language test went up by a penny
Buddy explains!

The straight part
We know that "Some writing" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case some writing = prose.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 PROSE mean?
PROSE noun- Language, particularly written language, not intended as poetry.
- Language which evinces little imagination or animation; dull and commonplace discourse.
- A hymn with no regular meter, sometimes introduced into the Mass.
- To write or repeat in a dull, tedious, or prosy way.