The term 'LONGSHOREMEN DO THIS' is solved by the four-letter word 'LADE'. Longshoremen are workers who are employed at ports and docks to load and unload ships. The job of a longshoreman includes lading, which is the process of loading and unloading cargo from ships. This is done using cranes, forklifts, and other heavy machinery. Lading is an important part of the job of a longshoreman, as it ensures that the cargo is safely and efficiently loaded and unloaded.