Winehouse host distributes prosecco second (3)

I believe the answer is:

amy

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'second' is the definition.
Both the answer and definition are singular nouns.
Maybe you can see a link between them that I don't see?

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

Can you help me to learn more?

(Other definitions for amy that I've seen before include "so-called little woman" , "Record-making British aviator, Johnson" , "--, Johnson, solo flyer" , "-- Johnson, female flyer" , "Youngest of Little Women" .)

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

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