Tweaks, say can be defined as making small changes or adjustments to something. This term can be used in many different contexts, such as when referring to a computer program, a piece of furniture, or even a recipe. The two crossword solutions for this term are ADAPTS and ALTERS, both of which have 6 letters. Adapts means to make suitable for a new use or purpose, while alters means to make a slight change to something. Therefore, both of these words can be used to describe the act of tweaking something.