Related Clues:

• Six-footers on a hill
• Small workers
• Picnic guests?
• Some competitions
• Emmets, e.g.
• Little scurriers
• Aphid farmers
• Ones with combs
• Colonial group
• Formicary creatures
• They head for the hills
• Dance if they're in your pants
• Picnic hamperers
• Soil aerators
• Busy builders