Related Clues:

• One grinding away with determination over a limited period
• Riverside plant?
• Complain loudly about schooltime left — it may be grinding
• There may be a race to supply one desire spanning an interval
• In Shakespeare, a word for what's currently worked
• Old factory in an expression in legal document
• What's ground raw millet?
• A conclusion in final document that's driven by race
• Crusher Bailey perhaps having first spell inside?
• Desire to adopt a name for a source of power
• Hydropower producer