Possible Clues:

• Someone from Sydney? (slang)
• Someone from Melbourne, perhaps (slang)
• Darwin subject
• How I get to sea with us across the world with him
• Emu or koala
• Lleyton Hewitt, e.g.
• Antipodean native, informally
• Native of Canberra (colloq.)
• A publication briefly circulated by English inhabitant of Brisbane
• Toowoomba resident