Related Clues:
- Like a black hole
- Thick, compact or crowded
- Thick, compact
- Thick as undergrowth may be
- Thick, impenetrable
- At this point 27 across may follow to make one's views unacceptable
- It's a bit thick to have the beasts there over the East
- Around the North the seed is thick
- That's a bit thick for the lairs over the East
- None too quick on the uptake
- Like depleted uranium
- Packed with ideas, as an essay
- Practically impenetrable
- Overly flattering
- Hard to get through