The term 'Smeared with Grease' can be solved by two crossword solutions: OILY (4 letters) and LARDED (6 letters). OILY is an adjective used to describe something that is covered in or saturated with oil. Larded is a verb meaning to cover or fill with fat, usually bacon or pork fat. Both terms refer to the act of covering something with grease, which is a thick, OILY substance made from animal or vegetable fats.