All societies that have a system of writing and a distance between nodes of power rely on letters as a form of communication, and there has to be someone to carry them. Whether it is from one street to another or from continent to continent messengers are given the task. Over the centuries and the evolution of civilization professional messengers have had to become keenly aware of the dangers that exist on the routes that they travel and of known or unknown adversaries that may attempt to wrongfully take the messages that they carry.
The tailor sets up shop to form wondrous cloths on the loom, that are used to create bags and outfits that hearty souls wear into perilous adventures. As skills are honed, new areas of craftsmanship open up and incredible trinkets of all kinds are brought to life on the tailor's workbench. Late in life, as necessity dictates, medicines begin to be procured from foraged herbs.
Every community deals with its share of death, often times more so with adventurers nearby. Handling the deceased is the job of the undertaker. They deal in every aspect of death: Collecting the corpse, preserving it, preparing it for the funeral, arranging the ceremony, crafting coffins and tombstones, cremating or interring the remains, and even handling the wills and estates of the deceased. Theirs is a macabre but necessary profession.
So called because they masquerade as spice merchants, spicers are actually dealers in illicit substances. They use smuggling, subterfuge, and the pungent smell of their legitimate goods to mask their activities, all the while selling illegal compounds to less scrupulous clientele on the sly. Especially successful spicers branch out, using their connections and facilities to traffic in all manner of contraband goods.