Walt __, US poet who sang 'the body electric'? (7)

I believe the answer is:

whitman

(Other definitions for whitman that I've seen before include "Walt --, US poet" , "Walt . . . . . . ., American poet of 'Leaves of Grass'" , "Slim < country and western singer" , "Walt . . . . . . . great American poet" , "American writer" .)

I've seen this clue in The Guardian.

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