The term 'smoothed (out)' can be described by three different crossword solutions: 'EVENED' (6 letters), 'ironed' (6 letters), and 'planed' (6 letters). EVENED is a verb that means to make something level or flat. Ironing is a process of using heat and pressure to flatten fabric. Planing is a woodworking technique that involves shaving off thin layers of wood to create a smooth surface. All three of these processes involve the use of pressure and/or heat to create a smooth, even surface.