Game's copyright superseding patent, initially it carries charge (9)

I believe the answer is:

cartridge

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'it carries charge' is the definition.
(as in a gun cartridge)

I can't explain the rest of the clue.

(Other definitions for cartridge that I've seen before include "Cassette" , "Shotgun ammunition" , "Shotgun shell" , "Credit rag (anag)" , "Magazine" .)

I've seen this clue in The Telegraph.

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