The term 'alarm clock, ideally' can be summarized by the crossword solution 'rousers, ' which is a six-letter word. A ROUSER is an alarm clock that is designed to wake someone up in the morning. It typically has a loud sound or vibration that is meant to startle the sleeper and wake them up. Rousers are often used by people who have difficulty waking up on their own or need to be woken up at a specific time.