Related Clues:
- 'All That Jazz' director Bob
- Gator bowl?
- Defensive ditch
- Protective trench
- Medieval security device
- Defense ditch
- Bob of 'All That Jazz'
- Director Bob who won a Tony, Oscar and Emmy all in the same year
- Zoo feature
- Water under the drawbridge
- Zoo sight
- Medieval security system
- Barrier at a zoo
- 54-Down defense
- Castle fortification