Possible Clues:

• South American country
• South American nation
• It's the end of the world!...or, the country home to Ushuaia, the southernmost city in the world
• Ta, Grannie, for the odd country
• Evita's land
• Pope Francis' birthplace
• English conductor blowing top in a South American country
• Evita's country
• Much of a Patagonian's motherland
• David Nalbandian's country