Crossword Genius

What appears to be bubbly text copied to Oscar (8)

Ross

I believe the answer is:

prosecco

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

'what appears to be bubbly' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'text copied to oscar' is the wordplay.
I cannot quite understand how this works, but
'text' could be 'prose' (I've seen this in another clue) and 'prose' is present in the answer.
'oscar' could be 'o' (phonetic alphabet: alpha, bravo, charlie etc.) and 'o' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for prosecco that I've seen before include "Sparkling wine from Italy" , "drink" , "white wine" , "Italian bubbly" .)

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