Related Clues:

• Triathlon leg
• Use the entrance ramp
• Tidal retreat
• Flow's counterpart
• Decline gradually, as a tide
• Combine lanes
• Join the 19 Down
• Turn two companies into one
• Emulate Michael Phelps
• Drain away
• Flow back, as a tide
• Float with current
• General meaning or flow
• Headache for a snow shoveler
• Flow outwards