Make a striking contribution to the conversation? (5,2)

I believe the answer is:

chime in

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'make' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their base form.
Maybe you can see a link between them that I can't see?

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for chime in that I've seen before include "Interject a remark" , "Interrupt" .)

I've seen this clue in The Globe and Mail.

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