Related Clues:

• Delphi diviner
• Over or sight follower
• Authoritative decider
• Sight attachment?
• One who might 17-Across
• Very wise one
• Person of vision?
• Prophecy source
• Godly mouthpiece
• Sibyl, for one
• 8-Down user
• Professor Trelawney, for one
• Crystal examiner
• Future examiner
• Tiresias, e.g., in Greek myth