Crossword Genius

Log wave as the best ever (6-7)

Ross

I believe the answer is:

record-breaker

I'm a little stuck... Click here to teach me more about this clue!

'best ever' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see a link between them that I don't see?

'log wave as' is the wordplay.
'log' becomes 'record' (I've seen this in another clue).
'wave as' becomes 'breaker' (breaker is a kind of wave. I am not sure about the 'as' bit.).
'record'+'breaker'='RECORD-BREAKER'

'the' is the link.

Can you help me to learn more?

(Other definitions for record-breaker that I've seen before include "Person having surpassed the previous best" , "Best-ever performance achiever" .)

I've seen this clue in The Daily Express.
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