Side trip at sea in turbulent waters (8)

I believe the answer is:

riptides

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'turbulent waters' is the definition.
'riptides' can be an answer for 'waters' (I have seen 'Dangerous Waters' mean 'riptides' so perhaps 'waters' could also mean 'riptides'). I'm not sure about the 'turbulent' bit.

'side trip at sea' is the wordplay.
'at sea' indicates anagramming the letters.
'side'+'trip'='sidetrip'
'sidetrip' is an anagram of 'RIPTIDES'.

'in' is the link.

Can you help me to learn more?

(Another definition for riptides that I've seen is " Dangerous Waters".)

I've seen this clue in The Times.

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