Crossword Genius

Daffy longed, I heard, for another duck (9)

Ross

I believe the answer is:

goldeneye

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

'duck' is the definition.
(type of duck)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for goldeneye that I've seen before include "Northern diving duck - 1995 Bond film" , "spy film" .)

I've seen this clue in The Independent.
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