For all to see, what FDR did for the world (6)

I believe the answer is:

uranus

'world' is the definition.
('world' could refer to any planet)

I cannot understand how the rest of the clue works.

(Other definitions for uranus that I've seen before include "Planet discovered by William Herschell in 1781" , "Might USA run up the planet?" , "Planet discovered in 1781 by Herschel" , "Seventh planet from the sun" , "Holst's Magician planet" .)

I've seen this clue in The Times.

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