Possible Clues:

• Man digging out aluminium ore, possibly
• Pitman and a student for Beryl, perhaps
• Manlier variety of soft drink
• Manual worker, having a pound, gets a drink
• E.g. bauxite, quartz
• Kind of water
• My old hands clutch a soft drink
• Worker, in the underground, as Al does, for a drink
• Geologist's concern
• Kind of water railmen used