Related Clues:

• Shame it's in a centre without a drink
• Corrupt scholars in river
• It makes a bed
• Earthworm's habitat
• Makes first appearance as engineer in disgrace
• Bed with bugs
• Busy type told to go contrary to the rules ¿ that just makes it dirty
• Earthworm habitat
• Loam
• Sovereign territory, synecdochically
• Contamination isn't common
• Drag down to seabed all at sea
• pH test specimen
• Potter's dirt
• ... T-A-I-N-T