Manual covers (6)
I believe the answer is:
gloves
'manual covers' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Perhaps there's an association between them I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for gloves that I've seen before include "Hand-warmers" , "Finger warmers" , "Hand coverings" , "Handwear" , "Hand covers" .)