A one-for-one deal is an agreement between two parties in which each party agrees to exchange something of equal value. In this case, the crossword solution for the term 'ONE-FOR-ONE DEALS' is 'SWAPS'. This term is often used in business transactions, where two parties agree to exchange goods or services of equal value. It can also be used in other contexts, such as when two people agree to exchange favors or when two countries agree to exchange prisoners.