The term 'potato skin' is a common phrase used to describe the outer layer of a potato. The crossword solutions for this term are 'PEEL' (4 letters) and 'JACKET' (6 letters). PEEL is a verb that describes the act of removing the outer layer of something, such as a potato. JACKET is a noun that refers to the outer layer of something, such as a potato. Therefore, the two crossword solutions for the term 'potato skin' accurately describe the outer layer of a potato.