Related Clues:

• Decrease in size or power
• Decline (in influence)
• Decrease in size
• What gums might do
• Had food after first letters tail off
• Wear out what sounds like little Kenneth from Belfast
• Gradually decline
• What old soldiers do
• Reduce, as taxes
• Lessen in intensity
• Decree (anag) — ebb
• Move away from Clare in tangled grass
• Hard-to-block jumper, in hoops
• Shrink, as the moon
• Drop off slowly