Crossword Genius

U2 song used in promotion (9)

Ross

I believe the answer is:

elevation

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

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for elevation that I've seen before include "Drawing of the external face of a building" , "Height above a given level" , "Architectural drawing" , "Height above sea level" , "High point" .)

I've seen this clue in The Irish Times.
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