Related Clues:

• A small parting, in hedge or teeth
• Open space between two things, mind it
• Small amount of food
• Cut with the teeth
• Structures in the jaws
• One saw with them
• That's for the driver to start with by mouth
• Could they be indentured, perhaps?
• Saw with them
• By the sound of it, in size or canine
• The doctor around a space that's open
• In a doctor there might be a hiatus like this
• In mouth in size or sound
• Saw with them how the biter gets bit (5)
• When something goes, that's what it leaves