Capital city replacing Kyoto (5)

I believe the answer is:

tokyo

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

'capital city' is the definition.
'tokyo' can be an answer for 'city' (Tokyo is an example). I'm not sure about the 'capital' bit.

'replacing kyoto' is the wordplay.
'replacing' is an anagram indicator (placing again).
'kyoto' anagrammed gives 'TOKYO'.

Can you help me to learn more?

(Other definitions for tokyo that I've seen before include "eastern city" , "Capital of Japan" , "Edo's modern name" , "Far Eastern capital" , "Japanese capital" .)

I've seen this clue in The Independent.

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