Possible Clues:

• Major hurdle, metaphorically
• Were she to take a holiday, she'd have a high time here
• Adam's partner found all the others under the great mountain
• To get on top of it the girl must take a break
• Would a vest e'er be needed by one up there?
• Mount, climbed 1953
• Challenge for Hillary
• Always set crooked - the very height of it
• One conquered in 1953
• Always it is in Latin and it's tops