Related Clues:
- Get blocked up
- Folk dancer's shoe, perhaps
- Blood-flow stoppage
- Dutch shoe
- Footwear that's hard to run in
- Blood blockage
- Thicken, as cream
- What platelets help blood do
- Block the pipes
- Become blocked
- Cousin of a 55-Down
- Reason to call Roto-Rooter
- Blood vessel obstruction
- Drain blockage
- Blood obstruction