Farm docs

VETS

They often treat animals large and small but aren’t the ones doing the milking or plowing. Think of the professionals who might give a cow stitches or a dog its shots.

"Farm docs" is a playful short form of "farm doctors," where "docs" is slang for doctors. The answer "VETS" fits because veterinarians are the medical professionals who treat farm animals. The clue relies on casual language to hint at the abbreviation while keeping the meaning clear.