The term 'Cleaner Scent' can be broken down into two crossword solutions: PINE (4 letters) and LEMON (5 letters). PINE is a type of evergreen tree that is native to many parts of the world, and its needles and wood are often used to make essential oils. LEMON is a citrus fruit that is widely used in cooking and baking, as well as for its fragrant essential oil. Both PINE and LEMON essential oils are popular ingredients in many cleaning products due to their fresh, natural scent.