Sea's energy heading for reef, a lot wiped out (5,5)

I believe the answer is:

tidal power

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'sea's energy' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'heading for reef a lot wiped out' is the wordplay.
'heading for' says to take the initial letters.
'out' indicates an anagram (out can mean wrong or inaccurate).
The initial letter of 'reef' is 'r'.
'r'+'a'+'lot'+'wiped'='ralotwiped'
'ralotwiped' anagrammed gives 'TIDAL POWER'.

Can you help me to learn more?

(Another definition for tidal power that I've seen is " Generation of electricity from sea movements".)

I've seen this clue in The Independent.

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