Why does a crossword clue have an asterisk before and after?

In crossWord puzzles, an asterisk before and after a clue typically indicates that the answer involves a specific theme or has a special significance, such as being a pun or related to a particular subject. It may also signify that the clue is part of a larger set of clues that share a common characteristic. Additionally, it can denote that the answer requires some sort of Wordplay or unconventional interpretation.