Damaging wave? (7)

I believe the answer is:

breaker

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'wave?' is the definition.
(I know that breaker is a type of Wind wave)

I don't understand the rest of the clue.

(Other definitions for breaker that I've seen before include "White-topped wave" , "Heavy wave arriving on the shore" , "Roller?" , "User of CB radio" , "Wave hitting the shore" .)

I've seen this clue in The Sun.

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