Dad acquires best beer can! (3-3)

I believe the answer is:

pop-top

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

'dad acquires best' is the wordplay.
'dad' becomes 'pop' (synonyms).
'acquires' means one lot of letters go next to another.
'best' becomes 'top' (top can mean the very best).
'pop'+'top'='POP-TOP'

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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