Related Clues:

• Helps out
• Simplifies
• Lubricates
• Gives permission
• Abates
• Becomes less jammed, as traffic
• Equips
• Pitches in
• Gives power to
• Greases the wheels for, say
• Comes to the rescue
• Dulls, as pain
• Relieves, as pain
• Moves slowly and carefully
• Mollifies