Huts may be built in this way (4)

I believe the answer is:

thus

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'in this way' is the definition.
(synonyms)

'huts may be built' is the wordplay.
'huts' can be anagrammed to 'THUS'.
However, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for thus that I've seen before include "In this way" , "as indicated" , "Consequently" , "an original Christmas gift" , "Therefore, hence" .)

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

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