The term 'VALIANT ONE' can be broken down into two crossword solutions: HERO (4 letters). A HERO is someone who is admired for their courage, outstanding achievements, or noble qualities. They are often seen as a role model and are willing to sacrifice themselves for the greater good. A valiant one is someone who is brave, courageous, and determined in the face of adversity. They are willing to take risks and stand up for what they believe in, even when it is difficult.