Awful poltergeist repels GI as it appears suddenly, seemingly out of nowhere (9)

I believe the answer is:

teleports

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'it appears suddenly seemingly out of nowhere' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'awful poltergeist repels gi' is the wordplay.
'awful' is an anagram indicator.
'repels' is a deletion indicator.
'poltergeist' with 'gi' taken out is 'polterest'.
'polterest' with letters rearranged gives 'TELEPORTS'.

'as' acts as a link.

Can you help me to learn more?

(Another definition for teleports that I've seen is " Communications centres".)

I've seen this clue in The Irish Times.

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