Related Clues:
- Viewing aperture
- Ploy she used as a security device
- An opening for someone with intelligence
- People he embarrassed using small aperture
- Undercover type mentioned undamaged feature of door?
- Endless publicity over plugging only a small opening for viewer
- Small viewing port
- One of those on the door offering a view to agent with depression
- Peeping Tom's spot
- Peeping aid
- Door viewer
- Peered-through aperture
- Hotel door feature
- Viewer in a door
- Sly hope (anag.)