The Answers for Wordscapes Level 6770 from the Wood pack and Master group are: ache, acne, cache, cancel, cane, chance, chancel, clan, clean, clench, each, heal, lace, lance, lane, leach, and lean.
Just a heads-up: the puzzle layout on Master levels is autogenerated, so the grid you see here might look a little different than the one in your game.