The most common and most likely answer to this crossword clue is the 9 letter word DOCUMENTS
I've seen this crossword clue in Independent
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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 DOCUMENTS mean?
DOCUMENTS noun- An original or official paper used as the basis, proof, or support of anything else, including any writing, book, or other instrument conveying information pertinent to such proof or support.
- Any material substance on which the information is represented by writing.
- A file that contains text.
- That which is taught or authoritatively set forth; precept; instruction; dogma.
- An example for instruction or warning.
- To record in documents.
- To furnish with documents or papers necessary to establish facts or give information.