Driven clear, power away (5)

I believe the answer is:

urged

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'driven' is the definition.
The definition and answer can be both to do with communicating as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?

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

Can you help me to learn more?

(Other definitions for urged that I've seen before include "Exhorted or prodded" , "Strongly recommended" , "Strongly advised" , "Incited" , "Egged on" .)

I've seen this clue in The Telegraph.

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