Free images results:

Clerk pictures, stock photos and images


Stress Stock Images
Author: Djma
Write Stock Images
Author: Ambrits

Also, here are some commercial RF-licensed images that match your search criteria:  
Clerk Royalty Free Stock Image
Author: Alexraths
Clerk Stock Images
Author: Allexander

Explore more commercial options: More Clerk Stock Illustrations & Vectors | More Clerk Stock Video Footage