Novelist for environment in speech (6)

I believe the answer is:

greene

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'novelist' is the definition.
(Graham Greene)

I cannot understand how the remainder of the clue works.

(Other definitions for greene that I've seen before include "The Quiet American author" , "writer" , "Graham -, twentieth century English author" , "See 13" , "Graham --, British author" .)

I've seen this clue in The Sun.

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