Related Clues:
- Drill for one who isn't the life of the party
- Cause yawns
- Person droning on about tax law, probably
- Tiresome person — tidal flood
- Drill (into)
- 'Every hero becomes a ___ at last': Emerson
- Tidal surge
- One buzzing
- 'Zzz' inducer
- Auger
- Push through a crowd and wave
- Tedious speaker
- Supported; dull person
- Tedious person's wave
- Drill; tidal wave