Say no more, ducks, and off you go! (4)

I believe the answer is:

shoo

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'off you go' is the definition.
The definition and answer can be both to do with motion as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?

'say no more ducks' is the wordplay.
'say no more' becomes 'sh' ('sh' means stop talking).
'ducks' becomes 'oo' (two O's - duck means zero in cricket).
'sh'+'oo'='SHOO'

'and' acts as a link.

Can you help me to learn more?

(Other definitions for shoo that I've seen before include "Get away" , "Word used to frighten away animals" , "Scary cry" , "Dismiss" , "Push off" .)

I've seen this clue in the Evening Standard.

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