Plain Georgian city (8)

I believe the answer is:

savannah

I believe this clue is a double definition.

'plain' is the first definition.
(I've seen this before)

'georgian city' is the second definition.
(city in Georgia, USA)

(Other definitions for savannah that I've seen before include "US port" , "Subtropical grassy plain" , "Open grassland" , "A grassy plain in hot regions with no trees" , "Grassy tropical plain with few trees" .)

I've seen this clue in The Times.

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