Related Clues:

• Tennis star Federer
• "Makes sense"
• "That's clear"
• 'I read you'
• Comprehending comment
• Walkie-talkie ''Okay''
• 'That's clear to me now'
• 'Amazing Grace' verse ender
• 'Ah, got it'
• 'Oh, now it's clear'
• Cry of apprehension
• Sort-of opposite of 16 Across
• 'I read you,' in radio lingo
• "Am I clear?"
• 'Ahh, OK'