Related Clues:

• Nest builder
• Army unit
• Colony resident
• Aardvark's prey
• Target of some humor in The New Yorker
• Social worker
• Exterminator's target, perhaps
• Hill insect
• Kitchen pest
• Lover of leftovers
• Tunneler
• Aardvark tidbit
• Mound builder
• Crumb carrier
• Velvet ant, for one