Winner here, champ ultimately surmounting great dislike (6)

I believe the answer is:

podium

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'winner here champ ultimately surmounting' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'great dislike' is the wordplay.
'great' becomes 'p' (I can't justify this - if you can you should believe this answer much more).
'dislike' becomes 'odium' (I've seen this before).
'p'+'odium'='PODIUM'

Can you help me to learn more?

(Other definitions for podium that I've seen before include "'Dais, pulpit (6)'" , "Conductor's rostrum" , "Lecturer's platform" , "Position of speaker" , "Platform for speaking from" .)

I've seen this clue in The Times.

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