The most common and most likely answer to this crossword clue is the 8 letter word DEWBERRY
D
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B
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More clues leading to the result DEWBERRY
Buddy explains!

The straight part
We know that "Fruit" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fruit = dewberry.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 DEWBERRY mean?
DEWBERRY noun- Small brambles of the genus Rubus which have stems that trail along the ground.
- The purple to black berries of these plants.