Huts are so untidy! (4)

I believe the answer is:

thus

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

'so untidy' is the definition.
I can't tell whether this defines the answer.

'huts' is the wordplay.
'huts' anagrams to 'THUS'.
But, I'm unsure how the anagram is indicated.

'are' acts as a link.

Can you help me to learn more?

(Other definitions for thus that I've seen before include "Shut (anag.)" , "an original Christmas gift" , "Consequently" , "as indicated" , "Like so" .)

I've seen this clue in the Evening Standard.

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