The crossword solution for the term 'Diamond Smash' is 'LINER, ' which is a five-letter word. A LINER is a type of bat used in the sport of softball. It is designed with a large sweet spot and a light swing weight, making it ideal for hitting long balls. The Diamond Smash is a specific type of LINER that is made from a durable alloy and has a unique diamond-shaped barrel. This design helps to increase the bat's power and accuracy, allowing players to hit the ball farther and with greater precision.