The term 'YOU're On!' can be expressed in four different ways using the solutions to the crossword puzzle. The first solution is 'DEAL' which is a four letter word meaning an agreement between two or more parties, usually involving the exchange of money or goods. The second solution is 'ITSABET' which is a seven letter word meaning a wager or gamble. The third solution is 'ITSADATE' which is an eight letter word meaning an arrangement to meet someone at a certain time and place. The fourth solution is 'ITSADEAL' which is also an eight letter word meaning an agreement between two or more parties, usually involving the exchange of money or goods. All of these solutions can be used to express the phrase 'YOU're On!' which is an expression of enthusiasm or excitement.