Related Clues:

• Imus' medium
• Volleyball need
• Dashboard item
• Atmosphere makeup
• Police car feature
• Rider's protection
• Balloon fill
• Play on the radio
• Pellet gun propellant
• 45 Across, essentially
• One mode of travel
• Ham, for one
• Word with force and mail
• Donna Summer's 'On the --'
• Power source