Small clearing?

• "If I may cut in . . ."
• "Um, I'm trying to talk here ..."
• Throat-clearer's rebuke
• "Can we get back to the subject, please?"
• "That's not really what you meant . . ."
• Throat sound
• "Can I have your attention?"
• I'm coughing but I don't have to cough
• Attention-getting throat-clearing sound

Wikipedia Word definitions in Wikipedia