Log wave as the best ever (6-7)
I believe the answer is:
record-breaker
'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" .)