How about with job title code Clerical Staff?
SELECT T1.staff_name , T1.staff_gender FROM staff AS T1 JOIN Staff_Department_Assignments AS T2 ON T1.staff_id  =  T2.staff_id WHERE T2.job_title_code  =  "Clerical Staff"
staff with job title code Clerical Staff refers to WHERE job_title_code = 'Clerical Staff';