Crossword Genius

One that kills for pride by swooping around (4,2,4)

Ross

I believe the answer is:

bird of prey

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

'one' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'kills for pride by swooping around' is the wordplay.
'for pride by' anagrams to 'BIRD OF PREY'.
Though, I am unsure how the anagram is indicated.

'that' acts as a link.

Can you help me to learn more?

(Other definitions for bird of prey that I've seen before include "Eg, eagle, hawk, owl" , "Buzzard, for example" , "Hobby, perhaps" .)

I've seen this clue in The Guardian.
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