The term 'ON URGE' can be solved by the crossword solutions EGG (3 letters) and EXHORT (6 letters). EGG is a noun that refers to the oval-shaped object produced by female birds, reptiles, and fish. It is often used as a food source and is a symbol of fertility and rebirth in many cultures. EXHORT is a verb that means to strongly advise or urge someone to do something. It is often used to encourage someone to take action or to make a change.