ISOLATED PART' The crossword solution for the term 'ISOLATED PART' is 'FRAGMENT'. A FRAGMENT is a piece or portion of something that has been broken off or separated from the whole. It can be used to refer to a part of a physical object, such as a broken piece of pottery, or it can be used to refer to a part of a larger concept, such as a phrase or sentence. Fragments are often used to describe something that is incomplete or isolated from the rest of the whole.