Very cold in a Gallic way (7)

I believe the answer is:

glacial

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'very cold' is the definition.
'glacial' can be an answer for 'cold' (similar in meaning). I'm not certain of the 'very' bit.

'a gallic way' is the wordplay.
'way' indicates an anagram (another way of arranging the letters).
'a'+'gallic'='agallic'
'agallic' anagrammed gives 'GLACIAL'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for glacial that I've seen before include "Icy; distant" , "Of slow moving ice masses" , "Cold and icy" , "Frigid" , "Pertaining to the ice ages" .)

I've seen this clue in The Globe and Mail.

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