The most common and most likely answer to this crossword clue is the 5 letter word WORTS
W
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S
Buddy explains!
The straight part
We know that "Veggies" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case veggies = worts.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 WORTS mean?
WORTS noun- A plant; herb; vegetable.
- Any of various plants or herbs, used in combination to refer to specific plants such as St. John's wort, or on its own as a generic term.