Crossword Genius

Articles produced by men of clay (7)

Ross

I believe the answer is:

pottery

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'clay' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for pottery that I've seen before include "China, for example" , "Ceramic ware" , "Goods of fired clay" , "Items made from clay" , "baked goods" .)

I've seen this clue in The Sun.
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