Vested is a term used in law to describe a right or interest that has been granted to an individual or group. It can refer to a right that is legally enforceable, such as a property right, or to a right that is established by custom or tradition. In the context of the crossword solutions, LAWFUL (6 letters) means that the right is recognized by the law; SETTLED (7 letters) implies that the right has been established for some time; CONSTITUTIONAL (14 letters) suggests that the right is protected by the constitution; and LEGAL (5 letters) indicates that the right is recognized by the LEGAL system.