The term 'Wrapper Body' can be solved by the crossword solution 'SKIN' (4 letters). SKIN is the outermost layer of the human body, which serves as a protective barrier against environmental elements. It is composed of two main layers: the epidermis and the dermis. The epidermis is the outermost layer, which is composed of dead SKIN cells that are constantly shed and replaced. The dermis is the inner layer, which contains blood vessels, nerve endings, sweat glands, and hair follicles.