The term 'BIG NAME ON WALL STREET' can be summarized by two crossword solutions: DOW (3 letters) and STEARNS (7 letters). Charles Henry Dow was an American journalist who co-founded Dow Jones & Company, which publishes the Wall Street Journal. He is also credited with creating the Dow Jones Industrial Average, a stock market index that tracks the performance of 30 large companies. James Stearns was an American banker and financier who founded the investment banking firm Lehman Brothers in 1850. He was one of the most influential figures on Wall Street during the 19th century.