Absurd dipping in twice in choppy sea (7)

I believe the answer is:

asinine

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'absurd' is the definition.
(I've seen this before)

'in twice in choppy sea' is the wordplay.
'twice' shows that letters should be duplicated.
'in' indicates putting letters inside.
'choppy' is an anagram indicator (choppy implies disruption).
'in' duplicated is 'inin'.
'sea' anagrammed gives 'ase'.
'inin' going inside 'ase' is 'ASININE'.

'dipping' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for asinine that I've seen before include "simple" , "'Mindless, vacuous (7)'" , "Senseless" , "Idiotic" , "Really silly, ridiculous" .)

I've seen this clue in The Sun.

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