I have clearance orders and I need to SELECT orders information’s and only Head of department can see the orders this is the QUERY

SELECT ID_NO,
       EMP_NO,
       EMP_REASON,
       ORDER_DATE,
       ORDER_USER,
       ORDER_STATUS,
         A.START_DATE , 
       A.END_DATE ,
       ACCEPT_HOD,
       ACCEPT_CUST , 
       a.dept_id
       from CLEARANCE_ORDERS A , CLEARANCE_EMP_INFO B 
     where a.emp_no = b.emp_id 

the query show all orders but I need to select all orders and manager only can see these orders
I added the manager ID and second manager ID in the orders table in the column

 A.HOD_EMP_ID 
   A.CUST_EMP_ID 

So how can I select all the employees orders where there manager = HOD_EMP_ID or CUST_EMP_ID ?