Authentic feet on somewhat prettier ormolu jardiniere (4)

I believe the answer is:

true

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'authentic' is the definition.
(I've seen this in another clue)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for true that I've seen before include "Right - honourable" , "In accordance with facts" , "Loyal; authentic" , "Genuine; faithful" , "comfortable" .)

I've seen this clue in The Guardian.

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