People in office (5)
I believe the answer is:
staff
'people in office' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for staff that I've seen before include "Walking-stick" , "team?" , "Stick - office employees" , "five lines?" , "Administrators etc - stick" .)