The term 'It's a Lock' is a phrase used to describe something that is secure and cannot be broken into. This phrase can be represented by several crossword solutions, such as HASP (4 letters), YALE (4 letters), DEADBOLT (8 letters), TRESS (5 letters), and SUREBET (7 letters). HASP is a type of lock that is secured with a metal loop and staple. YALE is a brand of locks that are commonly used in residential and commercial settings. DEADBOLT is a type of lock that requires a key to open and is often used on the exterior of a door. TRESS is a type of lock that is secured with a padlock and chain. Lastly, SUREBET is a type of lock that is secured with a combination code.