Related Clues:
- Overemphasize
- Speak incessantly about
- Be obsessed by what's vulgar about capital city, not half
- Ponder about academic housing to good effect
- Mull over source of water in river
- Speak at length about lecturer protecting source
- Think long and hard with one of those similar to 7 down about fine
- Mention too much
- Assume water has penetrated to linger over
- Keep talking about sport — crushing bore?
- Talk about ad nauseam
- Refuse to drop
- Speak about endlessly
- Talk about excessively
- Think at length about