Games giant's no plan to enter (8)

I believe the answer is:

nintendo

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'games giant's' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'no plan to enter' is the wordplay.
'plan' becomes 'intend' (intending is a kind of planning**).
'to enter' is an insertion indicator.
'no' placed around 'intend' is 'NINTENDO'.

Can you help me to learn more?

(Other definitions for nintendo that I've seen before include "People behind Mario" , "Console producer" .)

I've seen this clue in The Telegraph.

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