The most common and most likely answer to this crossword clue is the 7 letter word SPLEENS
I've seen this crossword clue in Independent
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Buddy explains!

The straight part
We know that "organs" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case organs = spleens.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 SPLEENS mean?
SPLEENS noun- In vertebrates, including humans, a ductless vascular gland, located in the left upper abdomen near the stomach, which destroys old red blood cells, removes debris from the bloodstream, acts as a reservoir of blood, and produces lymphocytes.
- (except in the set phrase "to vent one's spleen") A bad mood; spitefulness.
- A sudden motion or action; a fit; a freak; a whim.
- Melancholy; hypochondriacal affections.
- A fit of immoderate laughter or merriment.