Aunt's pastime, generating bubbles (12)

I believe the answer is:

astispumante

I'm a little stuck... Click here to teach me more about this clue!

'bubbles' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'aunt's pastime generating' is the wordplay.
'generating' indicates an anagram.
'aunts'+'pastime'='auntspastime'
'auntspastime' anagrammed gives 'ASTISPUMANTE'.

Can you help me to learn more?

I've seen this clue in The Daily Express.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.