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Such explorers go to the ends of the earth (5)

Ross

I believe the answer is:

polar

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'such explorers go' is the definition.
Both the definition and answer are adjectives. Perhaps there's a link between them I don't understand?

'to the ends of the earth' is the wordplay.
'to the' becomes 'pol' (I can't explain this - if you can you should believe this answer much more).
'ends of' says to hollow out the word (remove centre letters).
'the earth' becomes 'Asia Minor' (Asia Minor is an example).
'asiaminor' with its centre taken out is 'ar'.
'pol'+'ar'='POLAR'

Can you help me to learn more?

(Other definitions for polar that I've seen before include "Regions at the top and bottom of the world" , "Directly opposed" , "Type of bear" , "Directly opposite" , "Arctic and Antarctic regions, for example" .)

I've seen this clue in the Evening Standard.
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