Related Clues:

• Unproductive life's origin in lake under stone
• Way anger about English is unproductive
• Superclean, as surgical tools
• Rest lie wounded but uncontaminated
• Prepared for surgery, in a way
• Beyond clean
• Unproductive anger after ship’s back without navy
• Clean some steps to protect Queen
• Larger toilets regularly reviewed and disinfected
• Like an operating room, ideally
• Lifelessly dull
• Sister I left, somewhat lacking in creativity
• Unproductive anger follows setter regularly leaving bits out
• Disinfected blister I left to shrink
• Completely free of germs