Capital A followed by S (6)

I believe the answer is:

athens

'capital' is the definition.
(capital of Greece)

'a followed by s' is the wordplay.
'followed by' becomes 'then' (I've seen this in another clue).
'a'+'then'+'s'='ATHENS'

(Other definitions for athens that I've seen before include "EU capital" , "Greek capital" , "foreign city" , "Tan she got in Greece" , "City of the Parthenon" .)

I've seen this clue in The Telegraph, The Globe and Mail and The Sun.

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