Related Clues:
- Despondency of union member after swapping sides?
- Voice one's displeasure, in a way
- Melancholy state
- Verbal thumbs-down
- Cause of a start
- 'Kill the ump!'
- Work never-ending? I don't like that!
- Word I have no idea why a dead person would say to you
- Partner of 47-Across
- Ride the ump
- Heckler's hoot
- Melancholy mood
- Response to a bad baseball call
- What batsman's first pair of ducks may produce from crowd?
- Jeer from the crowd