Freezing - a coat is being provided (5)

I believe the answer is:

icing

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'freezing' is the definition.
(I know that icing is a type of freezing)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for icing that I've seen before include "Sugar-coating" , "Sweet cake topping" , "it's dangerous on the roads" , "causes trouble at airports?" , "Showing effect of cold snap" .)

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

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