Article in white marble (4)

I believe the answer is:

item

'article' is the definition.
(both can mean an object or thing)

'in white marble' is the wordplay.
'in' says the answer is hidden in the clue.
'ITEM' is hidden within 'white marble'.

(Other definitions for item that I've seen before include "Time (anag.)" , "One article" , "Two lovers as one" , "One thing on a list" , "Also no more" .)

I've seen this clue in the Evening Standard.

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