Clandestine Sort is a term used to describe a type of activity that is done in secret or without the knowledge of others. It is often used to refer to activities that are illegal or unethical. The term can also be used to describe a type of sorting algorithm that is used to organize data in a way that is not easily detected by others. The crossword solution for Clandestine Sort is 'SNEAK, ' which is an appropriate word to describe the activity.