Incredibly, crow dodges watercannon using feeler (7)

I believe the answer is:

antenna

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'feeler' is the definition.
(I know that feeler can be written as antenna)

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

Can you help me to learn more?

(Other definitions for antenna that I've seen before include "Insect's sensory appendage" , "Transmitting aerial" , "Feature of dish" , "What detects signals" , "Aerial - insect feeler" .)

I've seen this clue in The Irish Times.

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