The term 'SPEED CHESS NEED' can be solved by the crossword solution 'TIMER', which is a five-letter word. A TIMER is a device used to measure the passage of time, and in the context of speed chess, it is used to limit the amount of time each player has to make their moves. This helps to ensure that the game is played at a fast pace, as the players must make their moves within the allotted time or risk losing the game.