Inspiration I had on the stormy sea (5)

I believe the answer is:

ideas

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'inspiration i had on the stormy sea' is the definition.
I can't tell whether this defines the answer.

'i had on the stormy sea' is the wordplay.
'i had' becomes 'id' (contraction).
'on' is an insertion indicator.
'the stormy' indicates an anagram.
'sea' with letters rearranged gives 'eas'.
'id' placed within 'eas' is 'IDEAS'.

Can you help me to learn more?

(Other definitions for ideas that I've seen before include "thinking" , "plans" , "Thoughts, maybe creative" , "Brainwaves" , "Thoughts, creative perhaps" .)

I've seen this clue in the Evening Standard.

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