The crossword solution for the term 'Treasure Stash' is 'TROVE'. A TROVE is a collection of valuable items, such as coins, jewelry, or antiques, that has been hidden away or stored for a long period of time. It can also refer to a large collection of books, documents, or other items of cultural or historical significance. The term is often used to describe a hidden cache of valuable items, such as pirate treasure.