Related Clues:

• Smartened (up)
• Got hip, with 'up'
• Caught on, with 'up'
• Got smart, with 'up'
• ___ up (stopped being a fool)
• Became less reckless, say, with "up"
• -- up (got smart)
• Got smart, with ''up''
• Caught on, with "up"
• __ up (got smart)
• ___ up (became informed)
• Saw the light, with ''up''