Crossword Genius

Revolutionary undertaking, preparation for publishing (9)

Ross

I believe the answer is:

redaction

'preparation for publishing' is the definition.
(documents might be redacted before publication)

'revolutionary undertaking' is the wordplay.
'revolutionary' becomes 'red' (red can informally mean communist).
'undertaking' becomes 'action'.
'red'+'action'='REDACTION'

(Other definitions for redaction that I've seen before include "Amended written account" , "text version" , "writing" , "that's needed if text is poor" , "Editing a work" .)

I've seen this clue in The Times.
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