The term RED CROSS HERO can be broken down into two crossword solutions: DONOR (5 letters). A Red Cross Hero is someone who donates to the Red Cross, a humanitarian organization that provides emergency assistance, disaster relief, and education in the United States and around the world. Donors provide the financial support necessary for the Red Cross to carry out its mission of helping those in need. Donors are essential to the success of the Red Cross and their contributions are greatly appreciated.