Crossword Genius

Mike's small ring? (10)

Ross

I believe the answer is:

microphone

'mike's' is the definition.
(synonyms)

'small ring?' is the wordplay.
'small' becomes 'micro' (similar in meaning).
'ring?' becomes 'phone' ('phone' can be a synonym of 'ring').
'micro'+'phone'='MICROPHONE'

(Other definitions for microphone that I've seen before include "Device to pick up and transmit sounds" , "Sound receiver" .)

I've seen this clue in The Telegraph.
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