The crossword solution for the term START OF THIS CLUE is ESS, which stands for Employee Self Service. Employee Self Service is a type of Human Resources software that allows employees to access their own personal information, such as pay stubs, benefits, and vacation time. It also allows them to update their own information, such as address changes or contact information. This type of software is becoming increasingly popular in the workplace, as it allows employees to take more control over their own data and makes it easier for HR departments to manage employee information.