upsetter

n. 1. One who, or that which, sets; -- used mostly in composition with a noun, as typesetter; or in combination with an adverb, as a setter on (or inciter), a setter up, a setter forth. [ 1913 Webster ]

2. (Zool.) A hunting dog of a special breed originally derived from a cross between the spaniel and the pointer. Modern setters are usually trained to indicate the position of game birds by standing in a fixed position, but originally they indicated it by sitting or crouching. [ 1913 Webster ]

☞ There are several distinct varieties of setters; as, the Irish, or red, setter; the Gordon setter, which is usually red or tan varied with black; and the English setter, which is variously colored, but usually white and tawny red, with or without black. [ 1913 Webster ]

3. One who hunts victims for sharpers. Shak. [ 1913 Webster ]

4. One who adapts words to music in composition. [ 1913 Webster ]

5. An adornment; a decoration; -- with off. [ Obs. ] [ 1913 Webster ]

They come as . . . setters off of thy graces. Whitlock. [ 1913 Webster ]

6. (Pottery) A shallow seggar for porcelain. Ure. [ 1913 Webster ]