Related Clues:

• Cause to fluctuate
• Tongue or tail motion
• Reaction to a treat, maybe
• Move in the wind
• Direct route following sun
• Bend with a breeze
• Move back and forth, as a tail
• Sea traversed by those splitting Split?
• What trees do in fierce storms
• It's a cello playing swing
• Control southern route
• A wit
• What tongues or tails may do
• What a dog does with its tail
• Move from side to side, as a dog's tail