Predatory killer wrecked Pearl Harbor without limits (5,4)
I believe the answer is:
polar bear
'predatory killer' is the definition.
The definition and answer can be both animals as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'wrecked pearl harbor without limits' is the wordplay.
'wrecked' indicates an anagram.
'without limits' indicates the central letters (letters at the edges or 'limits' are removed).
The central letters of 'harbor' are 'arbo'.
'pearl'+'arbo'='pearlarbo'
'pearlarbo' anagrammed gives 'POLAR BEAR'.
Can you help me to learn more?
(Other definitions for polar bear that I've seen before include "Arctic carnivore" , "Arctic mammal" , "Arctic pack ice resident" , "Largest carnivorous land mammal" , "Beast of the Arctic" .)