Country motorists touring American trail - one left going the wrong way (9)

I believe the answer is:

australia

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'country' is the definition.
(Australia is an example)

I cannot understand how the rest of the clue works.

(Other definitions for australia that I've seen before include "Oz" , "English speaking nation" , "A US lariat can be found in this country, strangely" , "Test match players" , "Antipodean country" .)

I've seen this clue in The Independent.

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