Crossword Genius

French painter dreadfully rueing … (6)

Ross

I believe the answer is:

guerin

'french painter' is the definition.
(Pierre-Narcisse Gurin, 1774-1833)

'dreadfully rueing' is the wordplay.
'dreadfully' indicates an anagram (a dreadful spelling).
'rueing' is an anagram of 'GUERIN'.

I've seen this clue in The Guardian.
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