Possible Clues:

• Way out, at times
• Entrance at the rear
• Exit to a yard, perhaps
• Secret feature at rear of house
• Stern GP taking pair of spectacles in secret
• Put your money on exit for secret way in
• Secret sponsor will have opportunity
• The staff use it to get out for weekend in Cordoba heat
• Support doctor inhaling O₂ as a way out
• Screened item, often