A girth properly adjusted (6)

I believe the answer is:

aright

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'a girth properly adjusted' is the definition.
I can't tell whether this defines the answer.

'a girth properly adjusted' is the wordplay.
'a girth' anagrams to 'ARIGHT'.
Though, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for aright that I've seen before include "Correctly" , "Properly" , "Hat rig (anag.)" .)

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

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