The most common and most likely answer to this crossword clue is the 8 letter word BUNKERED
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Buddy explains!
The straight part
We know that "in the sand" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in the sand = bunkered.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 BUNKERED mean?
BUNKERED verb- To load a vessel with oil or coal for the engine.
- To hit a golf ball into a bunker.
- To fire constantly at a hiding opponent, preventing them from firing at other players and trapping them behind the barrier. This can also refer to eliminating an opponent behind cover by rushing the position and firing at extremely close range as the player becomes exposed.