Related Clues:

• Acute pain
• Spruce; sting
• 'Nice thinking!'
• "Clever thought!"
• Good-looking products finally taken to market
• Well-kept public transport to get backing
• "Great suggestion"
• Burn spruce
• Snazzy-looking
• Clean and tidy; sting
• 'Why didn't I think of that?!'
• Kind of public transport coming back into fashion?
• Clever; clean, tidy
• Like many bombs and cards
• Hard to fool