Colin (swansea jack),
I can't personnaly see what "ton" has to do with fashion. But I can't offer anyhing myself. I've tried but must admit I'm stumped. I take it you've got all the intersecting letters and are sure of them.
Thanks for your input and interest Terry, I am most grateful.
Ton (tôn) noun [ French See Tone .] The prevailing fashion or mode; vogue; as, things of ton . Byron. « If our people of ton are selfish, at any rate they show they are selfish.» Thackeray. Bon ton . See in the Vocabulary.
Found on http://www.encyclo.co.uk/webster/T/67