Related Clues:

• "What a Wonderful World" opening
• "Okay then"
• ''Makes sense!''
• 'Interesting ...'
• 'That makes 50-Across'
• "Makes sense to me"
• Follower's response
• ''Ah, yes . . .''
• "It's clear to me now"
• Enlightened response
• "That clears it up"
• "Say no more"
• 'Hmm, yes ...'
• 'Very interesting...'
• ''Uh huh''