Possible Clues:

• 'By the sound of it one's taught it's no more than nine (6,3)'
• From this one learns it's not so much upon X
• Sounds as if we learn this after nine
• Not one over the eight, one over the nine. It all goes to show
• Not so many on double figures might make this sound taut
• Is this what one has to learn to be more than one over the eight?
• It's not so much on X that's not the first thing you learn
• Sounds as if it's under, on double figures
• Can one learn that this sounds like under double figures?
• One must learn that this is only up to nine, by the sound of it