Bubbly, sparkling (12)

I believe the answer is:

effervescent

This clue is a double definition.

'bubbly' is the first definition.
(synonyms)

'sparkling' is the second definition.
(synonyms)

(Other definitions for effervescent that I've seen before include "Sparkling" , "Bubbly" , "Fizzy" .)

I've seen this clue in The Guardian.

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