Half a Winter Warmer is an item of clothing that is worn to keep the ears warm during cold weather. It is also known as an earmuff, which is a seven-letter word that can be used to solve a crossword puzzle. Earmuffs are typically made of soft material and have two circular cups that fit over the ears. They are often connected by a band that goes around the head. Earmuffs are a popular winter accessory and are available in a variety of styles and colors.