Related Clues:
- What the four theme answers all have
- Stops those from the building site
- Obstructs rowers' benches
- Puts up barriers for those on the building site
- Hinders, obstructs
- Prevents the majority of the verrucas
- Causes a bottleneck
- Bars for British rugby players
- Plugs up
- Mischievous child crushed seed in hampers
- Plugs closing 15 across
- Blocks, prevents
- Masses of badgers changing hands
- Prevents tooth enamel defects
- Crosses town to get suit, changing direction once