Crossword Genius

Nasty guy gets the food! (4)

Ross

I believe the answer is:

grub

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'the food' is the definition.
(grub is a kind of food)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for grub that I've seen before include "Slang food for worm-like larva" , "Slangy food or kind of larva" , "Dig (up); hack writers' Street" , "Dig - maggot - food" , "Food - worm" .)

I've seen this clue in the Sydney Morning Herald.
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