Possible Clues:

• Citizen no more
• Abbreviation for someone who has settled abroad
• Exile, in short
• Former statesman's worry about mark of voter power
• European tax originally about 10p per resident abroad
• Political outcast
• I've gone to live abroad, opportunely chasing former partner
• One living in foreign country
• Pole at the South Pole, say
• Banished one, for short