Croatian fashion used in bad weather (8)

I believe the answer is:

raincoat

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'in bad weather' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

'croatian fashion' is the wordplay.
'fashion' is an anagram indicator.
'croatian' is an anagram of 'RAINCOAT'.

'used' is the link.

Can you help me to learn more?

(Other definitions for raincoat that I've seen before include "Mackintosh" , "Outer garment for Croatian" , "Waterproof outer garment" , "Macintosh - with 22a" , "Actor in a (anag) - wet weather garment" .)

I've seen this clue in The Mirror.

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