Crossword Genius

Great work (4)

Ross

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4

11 6,4

'great work' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for opus that I've seen before include "Work of 25 perhaps" , "Composition - magnum __" , "Creative work, eg in writing, art or music" , "Artistic work" , "Work or composition, usually musical" .)

I've seen this clue in The Washington Post and The New York Times.
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