The term 'HEAD FEATURES' can be broken down into two crossword solutions: EARS (4 letters). The ears are one of the most prominent features on the head, and they are responsible for hearing. They are located on either side of the head and are made up of three parts: the outer ear, the middle ear, and the inner ear. The outer ear is the visible part of the ear, while the middle and inner ear are responsible for transmitting sound waves to the brain.