Related Clues:

• Cold symptom
• Hack
• Engine sound
• Triaminic target
• Discrete attention-getter
• Respiratory disorder
• Doctor's request
• It may accompany ''Ahem!''
• Cold sign
• Drop target
• Discreet attention-getter
• Hear 39-Across
• Clear one's throat, in a way
• Physician's request
• Sudden expulsion of air from the lungs