Related Clues:

• Decree being awful, move away
• Ebb or wane
• Peter out with shrink?
• Go back from park and garden, briefly
• Grow less edelweiss, initially, after Charlie cuts grass
• Cardinal saves church with end of steeple in decline
• Surrender after Royal Engineers retreat
• Soldiers to yield or retreat
• Ebb, retreat
• Retreat (like hair?)
• Ebb, go backwards
• What coastlines and hairlines may do
• Go back on unrealistic promise we'd made ultimately