The most common and most likely answer to this crossword clue is the 9 letter word VENTRICLE
V
E
N
T
R
I
C
L
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More clues leading to the result VENTRICLE
- Express anger about constant cavity
- Bodily chamber opening, contamination’s first found in gall
- Chamber to make nit clever
- ‘Bit of a brain’? Somehow isn’t clever, not first in school
- Centre ville mistranslated — not the French for this circulatory centre
- Specialist doctor dissecting liver caught damaged cavity
- Let out grass around end of April, showing some heart
Buddy explains!

The straight part
We know that "cavity" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cavity = ventricle.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 VENTRICLE mean?
VENTRICLE noun- Any small cavity within a body; a hollow part or organ, especially: