Could this be Saint Anthony's Cross - from one of the weekend General Knowledge crosswords. It would be helpful if you let us know which xword / quiz, the number of letters and which letters you've already got. As your question stands there could be several answers.
hornymike (?) You have got to meet us halfway if you need help! The last time this question was asked was Saturday, and we were told that it came from the crossword in the Times2, with letters (5,8,5) and known letters given by the following -A-N- / --T-O--- / -----
Compare this with the detail given in your posting. Any of these facts would have saved time for Jay-Jay and Muffet who went on a wild goose chase looking for alternative solutions.