From which presenter reads rolling news? (7)

I believe the answer is:

autocue

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'from which presenter reads' is the definition.
(a TV presenter reads from an autocue)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for autocue that I've seen before include "Vocal prompter" , "Newsreader's prompt" , "Newscaster's reading aid" , "TV prompt device" , "TV prompt machine" .)

I've seen this clue in The Times.

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