Related Clues:

• Strongly encourage
• Give a pep talk
• Foment
• Provoke, as a riot
• Spur on
• Fire up
• Admonish
• Urge on
• Instigate
• Provoke to action
• Give a pep talk to
• Urge strongly
• Be a catalyst for
• Act as a catalyst
• Urge earnestly