Whether it will be neat depends on the reactor design. MIT's for example 3D-prints the inner core and replaces it annually; it's surrounded by molten salt with

Whether it will be neat depends on the reactor design. MIT's for example 3D-prints the inner core and replaces it annually; it's surrounded by molten salt with a lot of lithium, and everything around that hinges so it can be opened up easily. Regardless, the waste won't need long-term containment. The economics of fusion reactors will also depend on the design. Some look economically feasible, others not so much. But it's clear that fusion is possible, contrary to the comment above.