Crossword Genius

Dying bird deserted by large rook (5)

Ross

I believe the answer is:

eager

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'dying' is the definition.
(thesaurus)

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(Other definitions for eager that I've seen before include "Longing to see" , "Keenly expectant" , "passionate" , "Keenly interested" , "Showing keen interest" .)

I've seen this clue in The Sun.
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