The term 'PART OF A COAT OF ARMS' can be summarized by the crossword solution CREST (5 letters). A CREST is a component of a coat of arms, which is a design used to identify a family, organization, or individual. It typically includes a shield, helmet, and other symbols that represent the family's history and values. The CREST is usually placed on top of the shield and is often the most recognizable part of the coat of arms.