Colliers (6)
I believe the answer is:
miners
(Other definitions for miners that I've seen before include "Extractors" , "They work below ground" , "Pit workers" , "Labourers below ground" , "They excavate the earth" .)
I believe the answer is:
miners
(Other definitions for miners that I've seen before include "Extractors" , "They work below ground" , "Pit workers" , "Labourers below ground" , "They excavate the earth" .)