The Answers for Wordscapes Level 26513 from the Grass 6 pack and Master group are: horn, how, nor, north, not, now, own, row, thorn, throw, thrown, ton, torn, tow, town, two, who, won, worn, and worth.
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.