Implement of which a loud-hailer is one type (9)

I believe the answer is:

megaphone

(Other definitions for megaphone that I've seen before include "One projects sound" , "Voice-amplifying device" , "Loudhailer" , "Cone-shaped device to intensify the human voice" , "Funnel-shaped voice amplifier" .)

I've seen this clue in The Times.

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