Related Clues:

• Something that shouldn't be left open
• Travel in a hot air balloon
• Use a Blue Angel, say
• Go cross country, perhaps
• Go out of sight, as gas prices
• Work in a cockpit
• Fly into the wild blue yonder
• Do the American thing?
• Use a hang glider
• Rise suddenly
• Focus on one's approach, say
• Emulate Steve Canyon
• Go gliding
• Ride the air currents
• Climb swiftly