Cryptic crossword clue
Not bubbling, American gas 6

The most common and most likely answer to this crossword clue is the 6 letter word FLATUS

I've seen this crossword clue in The Guardian
F
L
A
T
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S


Buddy explains!

The straight part
We know that "gas" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case gas = flatus.
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 FLATUS mean?

FLATUS noun
  1. Gas generated in the digestive tract.
  2. Expulsion of such gas through the anus.
  3. Morbid inflation or swelling.

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