The Answers for Wordscapes Level 21824 from the Red 10 pack and Master group are: horn, hour, ions, iron, nourish, onus, ours, rhino, ruin, runs, rush, shin, shorn, shun, sour, and urns.
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.