answer must be a vegatable or a fruit

[grumpyman]

Reverse double negative and I in the middle.
5 letter word that must be a vegatable or fruit.
i.e. this will let the water out?
LEEK.

[bimbo123456]

Onion on i on

[bimbo123456]

Incidentally, you might not have got an answer on this on Food and Drink. Try Quizzes and puzzles next time :)