The term 'wise counselor' can be represented by two crossword solutions: MENTOR and NESTOR. MENTOR is a character in Greek mythology who was a trusted friend and advisor to Odysseus. NESTOR was a wise and respected king in Greek mythology who offered advice to the other characters in Homer's Iliad. Both MENTOR and NESTOR are symbols of wise counsel and guidance, and their stories have been used as examples of wise advice throughout history.