A deceit disguised something chilling (4,3)

I believe the answer is:

iced tea

I'm a little stuck... Click here to teach me more about this clue!

'something chilling' is the definition.
I can't tell whether this definition defines the answer.

'a deceit disguised' is the wordplay.
'disguised' indicates an anagram.
'a'+'deceit'='adeceit'
'adeceit' anagrammed gives 'ICED TEA'.

Can you help me to learn more?

(Other definitions for iced tea that I've seen before include "Cool drink" , "Chilled drink" , "Cold summer drink" .)

I've seen this clue in The Sunday Times.

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