Crossword Genius

Ultimately failing to reach time for world record? (5)

Ross

I believe the answer is:

atlas

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'world record?' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for atlas that I've seen before include "God" , "One greatly burdened" , "Album of maps" , "He had the world on his shoulders" , "North African mountains - mythical Titan" .)

I've seen this clue in The Guardian.
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