Storage place for bran? (4)

I believe the answer is:

barn

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

'storage place' is the definition.
(I've seen this in another clue)

'bran?' is the wordplay.
'bran' anagrams to 'BARN'.
Though, I am not clear how this is indicated.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for barn that I've seen before include "Farm storage building" , "Bran stored in farm shed" , "Farm building for storing hay or grain" , "Farm storehouse" , "Big building" .)

I've seen this clue in the Evening Standard.

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