The most common and most likely answer to this crossword clue is the 9 letter word HEARTBEAT
H
E
A
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T
B
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A
T
More clues leading to the result HEARTBEAT
- Run in preliminary event and trounce Mo
- Attend after male, with skill, produces vital sign
- Pulse right to coat in warm batter
- Reviews that are about live TV programme
- For just an instant, sound of organ
- Uneven breath each time produces throb
- Maybe one’s skipped with excitement
- Try empty tomb to put away sign of life
- Breathe awkwardly at any instant
- Man with skill won — a living proof
Buddy explains!

The straight part
We know that "sound of organ" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sound of organ = heartbeat.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 HEARTBEAT mean?
HEARTBEAT noun- One pulsation of the heart; especially an irregular one, hence the emotion which causes it.
- The rhythm at which a heart pulsates, a cardiac indicator
- A driving impulse or vital force.
- A very short space of time; an instant.
- A periodic signal generated by hardware or software to indicate normal operation or to synchronize other parts of a system.