The crossword solution for the term 'Quite an Impression' is 'SPLASH'. This term is often used to describe a sudden and dramatic effect, usually of a visual nature. It can be used to describe a large or impressive display, such as a fireworks show or a grand entrance. It can also be used to describe a sudden and powerful sound, such as a loud crash or a thunderclap. In either case, it implies a strong and lasting impression.