Debunked theory after halt for refreshment (4,5)

I believe the answer is:

flat earth

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'debunked theory' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'after halt for refreshment' is the wordplay.
'for refreshment' indicates an anagram (I've seen this in other clues).
'after'+'halt'='afterhalt'
'afterhalt' with letters rearranged gives 'FLAT EARTH'.

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I've seen this clue in the Independent.

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