Before and After clues in Jeopardy! are clues pointing to
two answers in which the last part of one answer is also the first part of the
second answer. For example, "Supernatural kids' cartoon meets Star Wars
prequel" could be a clue to both "Danny Phantom" and "The
Phantom Menace", which would be shortened to "Danny Phantom
Menace".
These are a weak spot for me in Jeopardy, so I tried to make
some more crosswords using only the 'before and after' clues on from Jeopardy!
as found in the J-archive. It worked, sort of.