Caution
It's not sure than a character available in TexEdit may be used in AppleWorks.
TextEdit is Unicode aware while AppleWorks is not.
The chars with a circumflex usable in AppleWorks are:
 â Ê ê Ô ô Û û Î î
Here are some which aren't:
Ĉ ĉ Ĥ ĥ Ĵ ĵ Ŝ ŝ Ŵ ŵ Ŷ ŷ
For my own use, I built a table of favourites for the Character Palette tool.
In this one, I put the "accented" chars usable in AppleWorks.
So I may enter them by a simple drag and drop.
It's a pity but with Mac OS 10.4.x, the good old double click is no longer usable to enter a char from the palette when AppleWorks is active.
Some one decided to disable it because some users complained because double clicking an Unicode character gave an odd insertion.
This is what in France we describe with the formula (throw away the baby with the bath's water).
Yvan KOENIG (from FRANCE dimanche 7 octobre 2007 17:51:57)