Related Clues:

• Alien's nemesis, in sci-fi
• He lives here, writing science fiction
• Some of the old 'ranks of Tuscany'
• His return requested by James Blish
• Human (sci-fi)
• Misguidedly names a threat for ______ as ET?
• Alien prey, in sci-fi
• Chap from this planet
• What about cunning bloke? He's no alien