Related Clues:

• Scrutinize
• See-through item
• Socket filler
• Camera part
• Hieroglyph symbol
• Aperture
• See 54-Across
• It takes in the sights
• Iris's place
• Observe
• See 5-Down
• Give the once-over
• Christie's 'Death on the ___'
• Eyepiece
• Assess