Delivers manual workers (5)
I believe the answer is:
hands
This clue could be a double definition.
'delivers' is the first definition.
The definition and answer can be both to do with ownership as well as being verbs in their -s form.
Perhaps you can see an association between them that I can't see?
'manual workers' is the second definition.
(eg factory hands)
Can you help me to learn more?
(Other definitions for hands that I've seen before include "Crew members" , "Measurements for horses" , "Gives" , "Players' cards" , "skill in handling reins" .)