Possible Clues:

• Capital Down Under
• City called the Bush Capital
• Charlie goes to teetotaller clutching warning letters for blunder in Australian capital
• Old liner is able to get carrier by radio
• Tin fruit shortly before start of autumn to generate capital
• Capital in Antipodes under leadership of Britain -- is fallible without it?
• City of Australia
• Capital — bomber — liner
• Southern hemisphere capital city
• Artist supporting John Bishop on TV show -- Australian acts are made here