The term RECORD IMPROVER can be broken down into three crossword solutions: WIN (3 letters), which stands for 'achieve victory or success in a competition or battle'; RECORD (6 letters), which is defined as 'a piece of information about an event or situation that is written or stored so that it can be used or referred to later'; and IMPROVER (8 letters), which means 'someone who makes something better or more effective'. Therefore, the term RECORD IMPROVER can be summarized as someone who achieves success in making something better or more effective.