The most common and most likely answer to this crossword clue is the 7 letter word PAW-PAW
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P
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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 = paw-paw.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 PAW-PAW mean?
PAW-PAW noun- Any of several types of trees having edible fruit:
- The fruit of these trees.