Crossword Genius

Shake head, you and me getting reported (7)

Ross

I believe the answer is:

concuss

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'shake' is the definition.
(concussing is a kind of shaking)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for concuss that I've seen before include "Completely stun" , "Cause a brain injury" , "Stun with heavy blow" , "Inflict (temporary) damage on the brain" , "Knock it on the head!" .)

I've seen this clue in The Telegraph.
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