Possible Clues:

• Throaty sort of sound
• Relating to the throat
• Type of speech instinctive and fervent, finally atop mountain range
• Most of the bravery from troop leader on Russian river mouth sounds like it comes from deep down
• (Of speech sounds) produced in the throat
• Of the throat
• (Of sound) produced in the throat
• Throaty -- sounds like it might be to do with drainage?
• In a manner of speaking, rough tow up to square on mountain range
• Throaty in sound