Related Clues:

• Bony fish
• Get the lead out
• Refine, as metal
• Cold climate food fish
• Purify metal
• Small fish
• Stank
• Extract iron from ore
• Rid of impurities
• Do refinery work
• Work with ore
• Got a whiff of
• Do some metallurgy
• Refine metal
• Refine, as copper