The Answers for Wordscapes Level 21348 from the Melt 5 pack and Master group are: crush, crusher, cur, cure, curse, err, her, hue, recur, ruse, rush, rusher, she, such, sue, sure, surer, use, user, and usher.
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.