Well-shaken Prosecco cracked open by unknown contraption (9)

'contraption' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?

'well-shaken prosecco cracked open by unknown' is the wordplay.
I cannot really understand how this works, but
'unknown' could be 'y' (algebra) and 'y' is located in the answer.
an anagram of 'prosecco' is 'croscope' which is within the left over letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?