Crossword Genius

Baskets of celebratory wine Charlie left out (7)

Ross

I believe the answer is:

hampers

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'baskets' is the definition.
(hamper is a kind of basket)

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

Can you help me to learn more?

(Other definitions for hampers that I've seen before include "Encumbers" , "Obstructs with food baskets" , "Large baskets; hinders" , "Obstructs with picnic baskets" , "picnic containers" .)

I've seen this clue in The Times.
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