Related Clues:

• Exorcist's foe
• 'Reaper' extra
• He's no angel
• Screwtape, in "The Screwtape Letters"
• Exorcist's enemy
• Incubus
• Enthusiast, plus
• Possessor?
• Exorcist's adversary
• Screwtape, for one
• Devilish sort
• Possessive sort?
• "The Exorcist" foe
• Minion of Mephistopheles
• Succubus