Last seen in:
- Thomas Joseph - King Feature Syndicate - Feb 1 2019
- Wall Street Journal - Jan 5 2017 - Add-Ons
- Thomas Joseph - King Feature Syndicate - Aug 23 2013
- Universal - Jun 13 2009
- New York Times - Jun 15 2008
- New York Times - Jan 9 2008
- Universal - Jun 6 2006
- New York Times - May 8 2005
- Universal - Jul 28 2001
- New York Times - May 23 1999
Related Clues:
- It's hard to get a thread inside it
- Sounds as if the colonel is off his head in there
- The sap is off his head - a hard case
- Hard outside, thread inside
- Partner of 44 Across
- One with a screw loose
- Macadamia, e.g
- One crazy enough for two drugs informally
- Cashew or almond
- Pistachio, for one
- Beyond silly
- Filbert, e.g
- Brazil is one
- Trail mix tidbit
- One cracked shell