Related Clues:

• Force onward
• Wanderlust, e.g.
• Insist
• Spur (on)
• Press, as to vote
• It may be uncontrollable
• The munchies, for one
• It may be hard to resist
• Impulsive feeling
• Try to convince
• Spur, with "on"
• Advocate forcefully
• Prompt, in a way
• Addict's bugbear
• Hard-to-resist yen