1 He has a security clearance that allows him access to classified information.
2 They have to wait for clearance from air traffic control.
3 All employees at the submarine base require security clearance.
4 Schwartz opened the conversation by saying that the Agency had decided to reinstate the employee and restore his clearance.
5 The old thick rad did not give enough clearance for a normal or any other type of fan.
6 Landscape gardeners have begun a clearance of the overgrown ground to make way for a new park.
7 The UN pledged to help supervise the clearance of mines.
8 She'll race if she gets medical clearance from her doctor.
9 You'll need to get security clearance for this job.
10 Professors who wish to work with human genetic material need clearance from their university's review board.