Reacts badly in icy run (6)

I believe the answer is:

cresta

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'icy run' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'reacts badly' is the wordplay.
'badly' indicates anagramming the letters (letters in the wrong order).
'reacts' anagrammed gives 'CRESTA'.

'in' is the link.

Can you help me to learn more?

(Other definitions for cresta that I've seen before include "high-speed run" , "A toboggan Run" .)

I've seen this clue in The Independent.

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