Related Clues:

• Brighten up
• Calculator key
• It can carry a tune
• Certain weather forecast
• Walkie-talkie
• Unclogged
• Easy to see or understand
• Sound receiver
• Shortwave, e.g.
• Imus' medium
• Dashboard item
• Disperse
• Police car feature
• Ham, for one
• Donna Summer's 'On the --'