saddler
Someone who makes, repairs and sells saddles, harnesses etc.
In making saddles to run and try in, the trees of them are occasionally leaded by the tree-maker or saddler, agreeably to the directions either may receive from his employer; and a four-pound saddle in this way is made to weigh seven pounds.
The harp seal.
Where it comes from
From Middle English sadeler, sadelere, equivalent to saddle + -er. Cognate with Old Norse sǫðlari (“saddler”).
Adapted from the Wiktionary entry saddler (CC BY-SA 4.0).