The term ONE PAYING A FLAT FEE can be broken down into three crossword solutions: TENANT, LESSEE, and RENTER. A TENANT is someone who pays rent to occupy a property owned by another person or entity. A LESSEE is someone who has the right to use property owned by another person or entity for a specified period of time in exchange for payment. A RENTER is someone who pays rent to use a property owned by another person or entity for a specified period of time. All three terms refer to someone who pays a flat fee for the use of a property.