Body of Agatha Christie's work?

CORPSE

Her most famous titles often revolve around what’s left behind after the crime.

This clue plays on the double meaning of "body." On the surface, it seems to ask about Agatha Christie's literary output—her "body of work"—but the real trick is interpreting "body" literally. Christie was famous for murder mysteries, so the answer is a dead body, or "corpse," turning the phrase into a darkly clever pun. It’s a classic example of how crossword clues misdirect with simple words.