Andre —, French poet who published the first Surrealist manifesto in 1924 (6)

I believe the answer is:

breton

(Other definitions for breton that I've seen before include "Frenchman" , "from Northern France" , "Person from Brittany" , "Inhabitant of NW France" , "A native of Brittany, France" .)

I've seen this clue in The Mirror.

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