Possible Clues:

• Mountain first climbed by Edward Whymper
• Mountain of stuff at the Cape
• A scale that may be difficult, subject to instrument
• Steep mountain presenting dire threat in early part of day
• Not so bright cape, one of a range
• Before noon, possibly, completely lowering milliner's cap's peak
• Mountain stuff, something hard
• Mountain, terrible threat in early part of day
• Mont Cervin, to the French, first climbed by Edward Whymper in 1865
• Pointy Swiss Alp