Related Clues:

• It may thicken
• What paranoid people see everywhere
• With 38-Down, common device on 'The Twilight Zone'
• Machinate
• Building site
• Conspiracy
• Whodunit's essence
• Screenplay skeleton
• Mark on a map
• Secret scheme
• Bit of land
• Basis of a novel
• Makings of a coup
• Stove feature
• Conspirator's creation