Related Clues:

• Run in front of U
• K-O connection
• R-V link
• A train?
• Great, in rap lingo
• Consonantal trio
• 4 on a phone
• Cook of Creedence Clearwater Revival
• Disco guy on 'The Simpsons'
• Alphabetical run
• Letter run
• Three after D
• Lexicographer's concern: Abbr.
• Erwin of early TV
• Rad