Falling into previous state in large spin (9)

I believe the answer is:

relapsing

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'falling' is the definition.
The definition and answer can be both related to change as well as being present participle verbs.
Maybe they are linked in a way I don't understand?

'previous state in large spin' is the wordplay.
'large spin' anagrams to 'RELAPSING'.
But, I am not clear how the anagram is indicated.

'into' is the link.

Can you help me to learn more?

(Another definition for relapsing that I've seen is " sinking".)

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

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