Related Clues:

• Root spot
• Something a lawyer might once have called on?
• Foundation of farming
• Contaminating or corrupting influence
• Adulterate, make something be of less value
• Lower graduates into river
• Earth; stain
• Those lacking socks are not commonly corrupt
• The ground is dirty
• I have the sun going round the earth!
• Pass giving foul
• Dirty ground
• Lower seabed removed
• It's not commonly seen as pollution
• Corrupt odd characters in boats in river