The term 'dead giveaway' is a phrase used to describe something that is so obvious that it cannot be mistaken. It is often used to describe a situation in which someone has given away too much information, or when something is so obvious that it is impossible to miss. In the context of a crossword puzzle, the term 'dead giveaway' can refer to three different solutions: BEQUEST (7 letters), ESTATE (6 letters), and LEGACY (6 letters). A BEQUEST is a gift of money or property made in a will. An ESTATE is all the property owned by a person at the time of their death. A LEGACY is something that is handed down from one generation to the next, such as a tradition or a set of values. All three of these terms are related to the idea of passing something on after death, which is why they are considered a 'dead giveaway' in a crossword puzzle.