Dynamic riptides at sea (8)

I believe the answer is:

spirited

'dynamic' is the definition.
(thesaurus)

'riptides at sea' is the wordplay.
'at sea' is an anagram indicator.
'riptides' is an anagram of 'SPIRITED'.

(Other definitions for spirited that I've seen before include "Energetic, animated" , "with brio" , "Mettlesome" , "Secretly transported" , "Full of energy and enthusiasm" .)

I've seen this clue in The Sun.

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