Bolt inside official artwork (6)

I believe the answer is:

statue

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'artwork' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Other definitions for statue that I've seen before include "Sculpture depicting a person" , "Sculpture of person or animal" , "Carved representation" , "As created by 3dn" , "A carved or moulded effigy" .)

I've seen this clue in the Sydney Morning Herald.

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