Diligent souls due to change (8)

I believe the answer is:

sedulous

'diligent' is the definition.
(similar in meaning)

'souls due to change' is the wordplay.
'to change' is an anagram indicator.
'souls'+'due'='soulsdue'
'soulsdue' anagrammed gives 'SEDULOUS'.

(Other definitions for sedulous that I've seen before include "Constantly attentive" , "Diligent" .)

I've seen this clue in the Sydney Morning Herald.

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