Related Clues:

• Take in air
• Smell the coffee, e.g.
• Exam instruction
• Take a drag
• Take in the air?
• Laryngologist's request
• Discreet attention-getter
• Sample the fresh air
• Clinton said he didn't do it
• Toke
• Hear 39-Across
• Gasp, say
• Yoga instructor's direction
• "Open up!"
• Admit oxygen