Related Clues:

• Half and half?
• Slipper part
• Sometimes it's for the money
• Digit
• Start of a long distance call
• Washington is on it
• It's heard before a liftoff
• 'A Chorus Line' number
• See 34-Down
• Water temperature tester
• Formula ___
• 'Blastoff!' preceder
• It's inseparable
• Water tester, at times
• Dactyl