The sole hot African country (7)

I believe the answer is:

lesotho

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'african country' is the definition.
(country in Africa)

'the sole hot' is the wordplay.
'sole hot' anagrams to 'LESOTHO'.
But, I am not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for lesotho that I've seen before include "He loots (anag) -- southern African kingdom" , "Country entirely within South Africa" , "Independent kingdom, an enclave of South Africa" , "Kingdom within South Africa" , "Kingdom that was formerly Basutoland" .)

I've seen this clue in The Irish News.

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