Related Clues:

• Ophthalmologist's concern
• Sight site
• Spot on a spud
• Designer's asset
• Sight seer
• Cyclops feature
• Eagle or hawk follower
• It may be naked or evil
• Orb, in prose
• Cyclops' singleton
• Watcher
• Rope loop
• Part of a needle
• Mr. Potato Head part
• Spy satellite, metaphorically