Artist who is chippy about her work? (8)

I believe the answer is:

sculptor

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'artist' is the definition.
(I know that sculptor is a type of artist)

I don't understand the remainder of the clue.

(Other definitions for sculptor that I've seen before include "Artist in three-dimensional shapes" , "Artist who carves" , "Does this artist lop crust off?" , "A carver of statuary" , "Artist in stone, bronze etc" .)

I've seen this clue in The Guardian.

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