Related Clues:

• "What ___ up, must come down"
• "What ___ around, comes around"
• Moves on
• Combat pilots' missions
• Doesn't stay
• "As Time ___ By"
• Says, informally
• "Mr. Smith ___ to Washington"
• 'It just -- to show you'
• See 17 across
• Functions of leaves
• Operational flights made by aircraft
• Departs; operates
• Time to drop lies in charges
• Leaves; operates