The term 'has an effect on' can be broken down into three crossword solutions: IMPACTS (7 letters), IMPS (4 letters), and SHAPES (6 letters). IMPACTS refers to the influence or effect that something has on another thing, while IMPS is a term used to describe a mischievous spirit or demon. SHAPES, on the other hand, is used to describe the form or outline of an object. All three terms are related to the phrase 'has an effect on' in that they all refer to the influence that one thing has on another.