Fizzy drink in cold picnic baskets (8)

I believe the answer is:

champers

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'fizzy drink' is the definition.
'champers' can be an answer for 'drink' (informal term for champagne). I am not sure about the 'fizzy' bit.

'cold picnic baskets' is the wordplay.
'cold' becomes 'c' (eg on taps).
'picnic baskets' becomes 'hampers' (I've seen this in another clue).
'c'+'hampers'='CHAMPERS'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for champers that I've seen before include "Drink casually" , "Might they be extremely eager" , "celebratory drink" , "Kind of sparkling wine (slang)" , "People who eat" .)

I've seen this clue in The Times.

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