The crossword solution for the term 'wait, with 'ON'' is 'HANG'. This term is often used to describe a situation in which someone is waiting for something to happen. For example, if someone is waiting for a bus, they might say that they are 'hanging ON' for it to arrive. It can also be used to describe a situation in which someone is waiting for something to be resolved or completed. For example, if someone is waiting for a decision to be made, they might say that they are 'hanging ON' for the outcome.