The most common and most likely answer to this crossword clue is the 8 letter word GAZELLES
I've seen this crossword clue in The Guardian
G
A
Z
E
L
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S
More clues leading to the result GAZELLES
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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 GAZELLES mean?
GAZELLES noun- An antelope of either of the genera Gazella (mostly native to Africa) or Procapra (native to Asia), capable of running at high speeds for long periods.