Dive in splashily, it's lovely! (6)

I believe the answer is:

divine

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'lovely' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'dive in splashily' is the wordplay.
'dive in' anagrams to 'DIVINE'.
Though, I am not sure how this is indicated.

'it's' acts as a link.

Can you help me to learn more?

(Other definitions for divine that I've seen before include "Apprehend" , "Search for water with a rod" , "Heavenly" , "Appertaining to God" , "Godlike (6" .)

I've seen this clue in the Evening Standard.

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