Take the expression "ethiopian pandit", erase 4 letters and rearrange the rest to create an 11-letter adjective you surely know.
I hope (not absolutely sure) there is only one way to do it!
(In reply to
re: a tip by Steve Herman)
1. "CLEVER TIP" = PITA
2. The adjective in question is a mathematical term widely used and most certainly known both to Ch and SH.
3. The word starts with d and ends with e.
4. No errors in all my previous statements
5. If no one solves it - the offical solution will be published on Fiday.