Former capital rebuilt as Tokyo (5)

I believe the answer is:

kyoto

I'm a little stuck... Click here to teach me more about this clue!

'former capital' is the definition.
(I've seen this before)

'rebuilt as tokyo' is the wordplay.
'tokyo' anagrams to 'KYOTO'.
Though, I am unsure how this is indicated.

Can you help me to learn more?

(Other definitions for kyoto that I've seen before include "Former Japanese capital city - Tokyo (anag)" , "Japanese city of treaty on climate change" , "Japan's old capital" , "Tokyo (anag) - former capital of Japan" , "City of agreement on global warming" .)

I've seen this clue in the Evening Standard.

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