Crossword Genius

Single frightfully hot tongue (7)

Ross

I believe the answer is:

english

'tongue' is the definition.
(tongue can mean a language)

'single frightfully hot' is the wordplay.
'frightfully' is an anagram indicator.
'hot' becomes 'h' (common abbreviation eg on taps).
'single' is an anagram of 'englis'.
'englis'+'h'='ENGLISH'

(Other definitions for english that I've seen before include "Race" , "Language spoken in his glen, strangely" , "An official language of the Republic of India" , "speech" , "to write these answers in?" .)

I've seen this clue in The Times.
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