The most common and most likely answer to this crossword clue is the 4 plus 4 letter word PLUM DUFF
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More clues leading to the result PLUM DUFF
Buddy explains!

The straight part
We know that "fruity dish" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fruity dish = plum duff.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 PLUM DUFF mean?
PLUM DUFF noun- A plum pudding.