Crossword Genius

Upon (4)

Ross

I believe the answer is:

atop

'upon' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for atop that I've seen before include "on the head" , "In superior position" , "On the highest point" , "On the peak" , "highest level" .)

I've seen this clue in The Wall Street Journal, the Universal, The Times, the USA Today, The Star Tribune, the Penny Press, the LA Times, The New York Times, the Sydney Morning Herald and The Sunday Times.
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