The most common and most likely answer to this crossword clue is the 7 letter word MEDDLED
M
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D
D
L
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More clues leading to the result MEDDLED
Buddy explains!

The straight part
We know that "Was a busybody" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case was a busybody = meddled.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 MEDDLED mean?
MEDDLED verb- To interfere in or with; to concern oneself with unduly.
- To interest or engage oneself; to have to do (with), in a good sense.
- To mix (something) with some other substance; to commingle, combine, blend.
- To have sex.