The box containing novelties I repacked (10)

I believe the answer is:

television

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'the box' is the definition.
(the box can informally mean the television)

'novelties i repacked' is the wordplay.
'novelties i' anagrams to 'TELEVISION'.
But, I'm unsure how this is indicated.

'containing' is the link.

Can you help me to learn more?

(Other definitions for television that I've seen before include "box set" , "Tube" , "Gogglebox" .)

I've seen this clue in The Guardian.

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