The crossword solution for the term 'urged to attack, with 'ON'' is 'sicced, ' which is a six-letter word. It is an informal verb meaning to urge or incite someone to do something, especially to attack. The term is derived from the word 'SICK, ' which is used to describe someone who is eager to do something. The phrase 'sicced ON' is often used to describe someone being urged to attack another person or group.