Crossword Genius

Insubstantial collection of documents about newspaper (7)

Ross

I believe the answer is:

fragile

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'insubstantial' is the definition.
(thesaurus)

'documents about newspaper' is the wordplay.
'documents' becomes 'file' (file can mean a collection of documents).
'about' indicates putting letters inside.
'newspaper' becomes 'rag' (informal term for a newspaper).
'file' enclosing 'rag' is 'FRAGILE'.

'collection of' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.

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(Other definitions for fragile that I've seen before include "Delicate, tenuous" , "Liable to break easily" , "To be handled with care" , "Brittle" , "Easily broken or damaged" .)

I've seen this clue in The Independent.
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