The most common and most likely answer to this crossword clue is the 9 letter word BLUEBERRY
I've seen this crossword clue in Independent
B
L
U
E
B
E
R
R
Y
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 = blueberry.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 BLUEBERRY mean?
BLUEBERRY noun- An edible round berry, belonging to the cowberry group (Vaccinium sect. Cyanococcus), with flared crowns at the end, that turns blue on ripening.
- The shrub of the above-mentioned berry.
- A dark blue colour.
- To gather or forage for blueberries.
- Of a dark blue colour.