Related Clues:

• "This is only ___" (part of an old TV message)
• '50s headline event
• Mushroom grower, for short?
• Old fallout source
• Take ___ (thank the crowd)
• Take __ (respond to applause)
• "This is only ___ . . ."
• Words after take or tie
• Take __ (acknowledge applause)
• 'This is only __'
• Big blast, informally
• Engage in ___ of wills
• Take ___ (respond to applause)
• Operation Crossroads event, 1946
• Bikini blast, for short