The most common and most likely answer to this crossword clue is the 8 letter word POTATOES
P
O
T
A
T
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More clues leading to the result POTATOES
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 = potatoes.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 POTATOES mean?
POTATOES noun- The tuber of a plant, Solanum tuberosum, eaten as a starchy vegetable, particularly in the Americas and Europe; this plant.
- A conspicuous hole in a sock or stocking
- A camera that takes poor-quality pictures.
- A mentally handicapped person.
- An underpowered computer or other device, especially when small in size.