Possible Clues:

• Lop tops off (trees)
• Elder without a crown?
• Deer with antlers removed
• Cut back or start to cut back the fat of the tree
• Cut up fat and trim
• Voting? A way to get rid of the crown
• HoHead for a road to cut the crown from a tree
• Vote over a transport system to be cut back
• Cut back branches of (tree)
• Head has a way to cut down the number of branches