The crossword solution for the term 'make suitable again' is 'readapt'. Readapt means to make something suitable or fit for a new purpose or situation. It is often used in reference to adapting something to a new environment, such as when a person moves to a new country and has to readapt to the new culture. Readapting can also refer to making something suitable for a new use, such as when a company readapts an old building for a new purpose.