Related Clues:

• Grub found on small stem that grows underground for the most part
• The source of old rubbish found outside?
• Rhizome
• Underground feature sometimes square
• Grub to put back in part
• Elihu --, winner of the 1912 Nobel Peace Prize
• The way we hear Genesis
• Dig with snout
• Grub a factor in foundation
• Rummage (through)
• Dig for truffles
• Sleeping place that lacks sun -- it's underground
• Repeated word in "Take Me Out to the Ball Game"
• Organic anchor
• Noisy course to source