Cryptic crossword clue
Riders from celebrity on vacation: see notes 8

The most common and most likely answer to this crossword clue is the 8 letter word CYCLISTS

I've seen this crossword clue in The Guardian
C
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Buddy explains!

The straight part
We know that "Riders" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case riders = cyclists.
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 CYCLISTS mean?

CYCLISTS noun
  1. A person who rides a cycle, especially a bicycle, or who habitually engages in cycling.
  2. A user of the software language CycL.

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