Crossword Genius

Is charged using Visa now and then, in ancient place (5)

Ross

I believe the answer is:

ionia

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

'ancient place' is the definition.
The definition and answer can be both locations as well as being singular nouns.
Maybe you can see a link between them that I don't see?

'is charged using visa now and then' is the wordplay.
'is charged' becomes 'ion' (I've seen this in other clues).
'using' means one lot of letters go next to another.
'now and then' indicates alternate letters (letters taken on a regular basis, now and then).
The alternate letters of 'visa' are 'ia'.
'ion'+'ia'='IONIA'

'in' is the link.

Can you help me to learn more?

(Other definitions for ionia that I've seen before include "East coast of the Aegean in Classical times" , "Old region in Asia Minor" , "Ancient Greek region" , "Ancient region of Asia Minor" , "Classical Aegean region" .)

I've seen this clue in The Irish Times.
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