The term 'clever sorts' can be summed up in four letters: WITS. This term is often used to describe people who are intelligent, quick-thinking, and resourceful. They are able to think on their feet and come up with creative solutions to problems. They are also often good at problem-solving and have a knack for finding the best way to approach a situation. In short, they are the kind of people who can think outside the box and come up with clever solutions.