Related Clues:

• Outgoing type of regular mermaid girl, eh?
• Albert Einstein or Enrico Fermi
• Judge associated with the top people: I'm surprised he's been driven out
• One fleeing for safety
• Defector, perhaps
• Fugitive from EU free to wander round heart of Belgium
• Fermi, as a new Nobelist
• Political migrant
• Political refugee, say
• One who’s fled bad regime?
• One fleeing, eg, war
• Political expatriate
• One fleeing war, etc
• Official, say, in European Union rejected one taking flight
• One leaving country before fighter's let in