Related Clues:

• Backward flow
• Recede gradually, as the tide
• A hairline can do it
• Go out from the shore
• Withdraw and give up once more
• Go out after a rise
• The current recession
• Soldiers give up and fall back
• Start balding
• Descent
• Drop in the ocean?
• Recede, like the tide
• Go back, as the tide
• Move back, as a tide
• What gums might do