Related Clues:

• Foot, say
• The 'U' in 21-Down
• Btu part
• A mile or a minute, perhaps
• Ton or quart
• Body of soldiers
• -- pricing
• Cadre, e.g.
• Teacher's teaching
• College-course division
• A mile or a minute, e.g.
• Teaching unit
• GI group
• Blood measurement
• Platoon, e.g.