Related Clues:

• 'Very interesting'
• "Let me see ..."
• How one might like one's steak?
• Waterhole; healthy
• Word that may precede 'I never!'
• Thinker's sound
• Texas gusher
• Thoughtful sound
• 'I'm waiting...'
• 'Not sure how I feel about that...'
• 'That's odd ...'
• Fine — drilled hole
• Spring double can be said to surprise
• "Now that you mention it ... "
• Chin scratcher's utterance