TART UP is a phrase that refers to the process of making something look more attractive. The crossword solutions BEAUTIFY, PRETTIFY, TITIVATE, PRIMP, and DECORATE all refer to different ways of achieving this goal. BEAUTIFY means to make something more attractive by adding or emphasizing features that are aesthetically pleasing. PRETTIFY means to make something more attractive by making it look neat and tidy. TITIVATE means to make something more attractive by adding small details or touches. PRIMP means to make something more attractive by taking care of one's appearance. Finally, DECORATE means to make something more attractive by adding decorations or embellishments.