The term SERVICE EXPERT can be broken down into two crossword solutions: ACER and 4 letters. ACER stands for Automated Customer Experience Representative, which is a type of customer service role that uses automated technology to provide customer support. This type of role requires the individual to have a strong understanding of customer service and technology in order to provide efficient and effective customer service. The 4 letters refer to the qualifications needed for this role, which include excellent communication skills, problem-solving abilities, and a good understanding of customer service processes.