Related Clues:

• With 64-Across, words that can precede the starts of 18-, 31-, 38- and 55-Across
• Like crystal
• Fair, in forecasts
• Defibrillator operator's call
• ___ as a bell
• Find innocent
• Reset
• Not cloudy
• Comprehensible
• Like a day with blue skies
• Smogless
• Spelled-out
• Free partner
• "C" on a calculator
• Air condition?