The most common and most likely answer to this crossword clue is the 10 letter word FORMATTING
I've seen this crossword clue in The Guardian
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More clues leading to the result FORMATTING
Buddy explains!
The straight part
We know that "Document’s style" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case document’s style = formatting.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 FORMATTING mean?
FORMATTING verb- To create or edit the layout of a document.
- Change a document so it will fit onto a different type of page.
- To prepare a mass storage medium for initial use, erasing any existing data in the process.
- The visual style of a document, including fonts, borders, etc.
- The code in a markup language which determines a document's format.