Related Clues:

• 'Praise the Lord!'
• "Imagine that!"
• 'Aw, shucks'
• "Good heavens!"
• 'Shucks'
• "Shucks"
• 'Well, golly!'
• Beaver Cleaver expletive ... or what you might need to be to answer 18-, 23-, 51- and 60-Across?
• "Gosh!" (or, based on the starts of starred answers, one who is expert at solving this puzzle's theme?)
• Heavens above! That's the way to beg about a bird
• Beaver Cleaver remark
• 'Hallelujah!'
• "Hallelujah!"
• 'Wow, you're a regular expert at turning left!'
• Old cross oath