Definition: "Bellow"

This is a hidden word in reverse - look for the answer spelled backwards within the letters of another word or phrase in the clue.

The answer is hidden backwards inside 'Bloomsbury' - find a 3-letter sequence within those letters that spells the answer when reversed.

Answer: MOO | The word MOO (a bellow) is hidden in reverse within 'blOOMsbury' - reading OOM backwards gives MOO.