The term 'succeeds in business' can be summarized by the crossword solution 'sells'. This is a reference to the act of selling goods or services in order to make a profit. Selling is an essential part of any successful business, as it is the primary way that businesses generate revenue. Without sales, businesses would not be able to stay afloat and would eventually fail. Therefore, the term 'succeeds in business' can be accurately summarized by the crossword solution 'sells'.