Owl beak (6)

I believe the answer is:

hooter

I believe this is a double definition.

'owl' is the first definition.
(I know that owl can be written as hooter)

'beak' is the second definition.
(I know that beak can be written as hooter)

(Other definitions for hooter that I've seen before include "Warning sound" , "Gnomon" , "owl?" , "Uphill stone pusher (Gk. myth)" , "it smells" .)

I've seen this clue in The Telegraph.

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