The crossword solution for the term 'Jittery from Caffeine' is 'WIRED'. This term is used to describe the feeling of being agitated or nervous after consuming caffeine. Caffeine is a stimulant found in coffee, tea, energy drinks, and other beverages that can cause an increase in alertness, energy, and heart rate. Consuming too much caffeine can lead to jitteriness, which is characterized by trembling, restlessness, and difficulty concentrating.