Related Clues:

• 'Fancy that!'
• Dazzle
• Excellent
• 'My word!'
• Hard to believe
• La la starter
• La-la lead-in
• 'Golly!'
• Flat fixer
• Blow away
• 'Oh wow!'
• 'Holy Toledo!'
• 'I don't believe it!'
• Lacking substance
• 'Outta sight!'