David, maybe something like this?
) a harness maker. Knacker (n.) One who slaughters worn-out horses and sells their flesh for dog's meat. Knackish (a.) Trickish; artful. Knack-kneed (a.) See Knock-kneed. Knacky (a.) Having a knack; cunning; crafty; trickish. Knag (n.) A knot in wood; a protuberance. ...