Related Clues:

• Report complete support for crucial type of surgery
• Small viewing port
• Critical space in surgery?
• Type of surgery, essential on cavity
• Aperture in a lock
• Island house the French will make a tempting prospect for some?
• One of those on the door offering a view to agent with depression
• Peeping Tom's spot
• Peeping aid
• Peeper's vantage point
• Non-invasive
• Sly hope (anag.)
• Very important and difficult situation in this surgery?
• You can spy through it
• Main unit for broadcasters opening in Yale?