KNACKER

knacker. Knacker, n. a maker of knacks, a collarmaker

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Knack″er (?), n. 1. 1. One who makes knickknacks, toys, etc. Mortimer.
2. 2. One of two or more pieces of bone or wood held loosely between the fingers, and struck together by moving the hand; — called also clapper. Halliwell.