See what’s in the gifts dug up from ten pre-teen shops (4,3,8)

I believe the answer is:

open the presents

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'see what's in the gifts dug up from ten pre-teen shops' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'see what's in the gifts dug up from ten pre-teen shops' is the wordplay.
'ten pre-teen shops' can be anagrammed to 'OPEN THE PRESENTS'.
But, I am not sure how this is indicated.

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

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