Related Clues:

• Turning stomachs seeing filth
• Coarseness makes stomachs turn
• Grain woe
• Rio isn't involved in tourism and is in the Blue Books?
• Bane of rye crops
• Indecent material
• Stuff to be filtered
• Soot flake; cereal disease
• Raunchy material
• Fungal disease in cereals and other grasses
• Corporation's rejected material unsuitable for Auntie?
• Blue material gets stomachs turning
• Speck of soot or dust
• 'Give me __ and nothing but': Tom Lehrer lyric
• "Give me __ and nothing but": Tom Lehrer lyric