File contents of dossier as proposed (4)

I believe the answer is:

rasp

'file' is the definition.
(I know that rasp is a type of file)

'contents of dossier as proposed' is the wordplay.
'contents of' indicates a hidden word.
'RASP' can be found hidden inside 'dossier as proposed'.

(Other definitions for rasp that I've seen before include "fruit" , "File - berry" , "Grate; scrape" , "Abrade" , "Grating noise; file" .)

I've seen this clue in the Sydney Morning Herald.

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