Miners beginning to measure up in their output, having everything shared (8)
I believe the answer is:
communal
'shared' is the definition.
(I've seen this in another clue)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for communal that I've seen before include "For all to use" , "Owned in common" , "Shared by a group" , "Involving sharing of work and property" , "For a group of people" .)