The most common and most likely answer to this crossword clue is the 8 letter word AIRHEADS
I've seen this crossword clue in Independent
A
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More clues leading to the result AIRHEADS
Buddy explains!
The straight part
We know that "Idiots" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case idiots = airheads.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 AIRHEADS mean?
AIRHEADS noun- A horizontal channel providing ventilation in a mine.
- An area of hostile territory that has been seized for use as an airbase to ensure the further safe landing of troops and materiel.
- (by extension) A (usually temporary) landing area for aircraft for supplying a non-military operation.
- (originally United States) A foolish, silly, or unintelligent person.