Related Clues:

• Add function, appeal, to
• Make progress, making the little devil wander off
• Make even better
• Improve, make more attractive
• Get, make, better
• Increase in power, hence an explosion
• Improve (the quality of)
• Better ad-lib if note written up is missing
• Increase points to Chinese folk at church
• Improve the quality of (something)
• I propose introducing voting system that's better
• Bolster
• Improve quality (of item)
• Improve the chance?
• Vamp one's out to pick up