Crossword Genius

Work on papers is burden (7)

Ross

I believe the answer is:

oppress

'is burden' is the definition.
(I've seen this before)

'work on papers' is the wordplay.
'work' becomes 'op' (abbreviation for opus).
'on' is a charade indicator (letters next to each other).
'papers' becomes 'press' (the newspaper industry).
'op'+'press'='OPPRESS'

(Other definitions for oppress that I've seen before include "Subjugate or weigh on" , "Distress" , "Lie heavy upon" , "Afflict" , "Abuse" .)

I've seen this clue in The Guardian.
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