Related Clues:
- Heady subject?
- Cooperation roadblock
- Psych 101 topic
- Kind of trip taken alone
- Hollywood biggie?
- A prima donna's needs stroking
- "___ trip" (former hip-hop magazine)
- Absorbed by, as a hobby
- Something inflatable
- I, for Claudius
- Swellhead's trouble
- Vainglory
- Wig head
- ''Hidden'' theme of the puzzle
- If too big, it could lead to one's downfall