Oarswoman gets worn out going round this island country (5)

I believe the answer is:

samoa

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This might be a double definition.

'oarswoman gets worn out going round this island' is the first definition.
'Samoa' can be an answer for 'island' (Samoa is an example). I am not sure about the rest of the definition.

'country' is the second definition.
(Samoa is an example)

Can you help me to learn more?

(Other definitions for samoa that I've seen before include "Pacific island nation, capital Apia" , "Commonwealth country in the Pacific, capital Apia" , "Pacific islands state" , "Polynesian island group" , "Group of islands in the South Pacific" .)

I've seen this clue in the Sydney Morning Herald.

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