Clear this solution

Cede
Ceder
Cere
Cered
Cern
Creed
Creek
Deck
Deer
Dene
Dreck
Dree
Drek
Eden
Eked
Ender
Erne
Keen
Kern
Knee
Neck
Necked
Need
Neer
Nerd
Reck
Rede
Reed
Reek
Rend