Have a bias means to have a tendency to favor one side over another. It is often used to describe someone who has a strong opinion on a particular subject and is not open to other points of view. The crossword solutions for the term 'have a bias' are LEAN and TEND. LEAN means to incline or bend in a certain direction, while TEND means to be disposed or inclined to do something. Both words imply a preference for one side over another.