Becomes hip, with 'up'

• ___ up (catches on)
• Smartens (up)
• Smartens "up"
• Gets a clue, with "up"
• -- up (gets smart)
• Catches on, with "up"
• ___ up (gives info to)
• Figures it out, with "up"

Wiktionary Word definitions in Wiktionary
n. (plural of wise English)