The most common and most likely answer to this crossword clue is the 10 letter word MICROPHONE
I've seen this crossword clue in The Daily Telegraph
M
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More clues leading to the result MICROPHONE
Buddy explains!

The straight part
We know that "Mike" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case mike = microphone.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does MICROPHONE mean?
MICROPHONE noun- A device (transducer) used to convert sound waves into a varying electric current; normally fed into an amplifier and either recorded or broadcast.
- To put one or more microphones on or in.