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

I believe the answer is:

atlas

I'm a little stuck... Click here to teach me more about this clue!

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

I can't explain the remainder of the clue.

(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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