Possible Clues:

• Immaculate
• “Now by my maiden honour, yet as pure / As the ____ lily, I protest” (Love’s Labours Lost)
• Pristine
• Pure evil on the up! Not taken to court about it?
• Clean, could become dull in use
• Clean casks English agriculturist secured — but a few tons get lost
• Spotlessly clean, free from blemishes
• Not tarnished? Could become dull in use
• That's 7 down without any soil, perhaps