Related Clues:

• Alternative fuel overwhelms fellow with unknown discharge
• Finally wave bye bye and go out
• Flow's tidal opposite
• Move like a tide back to the sea
• Slide back into the sea, as a tide
• Drift back from the shore to the sea
• Technically, a flowing out of gas, liquid etc
• Don't go away quickly
• Move like a nonaggressive tide
• Go out (tide)
• Tide movement
• Subside like the tide
• Retreat like the waves
• Decline English books
• What high tides eventually do