Crossword Genius

The artist is up late for breakfast (5)

Ross

I believe the answer is:

manet

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

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for manet that I've seen before include "Edouard ___, painted Dejeuner sur l'herbe, d. 1883" , "Edouard ---, pre-impressionist" , "French painter" , "artistic individual" , "Edouard - - (painter)" .)

I've seen this clue in the Evening Standard.
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