Occupational suffixes are commonly used to denote a person's job or profession. The term 'occupational suffix' refers to the ending of a word that is used to indicate a person's occupation. The five occupational suffixes in this crossword are YER (3 letters), IST (3 letters), EER (3 letters), AIRE (4 letters), and IER (3 letters). YER is an informal suffix used to refer to someone who does a particular job, such as a plumber or a carpenter. IST is a suffix used to refer to someone who is an expert in a particular field, such as a scientist or a historian. EER is a suffix used to refer to someone who works in a particular field, such as an engineer or a teacher. AIRE is a suffix used to refer to someone who is a leader in a particular field, such as a mayor or a CEO. IER is a suffix used to refer to someone who is involved in a particular activity, such as a musician or a dancer. STER is a suffix used to refer to someone who is involved in a particular profession, such as a nurse or a doctor.