
1) Dress suit 2) Evening clothes 3) Evening dress 4) Eveningwear 5) Formal attire 6) Formal wear 7) Formal wear for jeeves 8) Formalwear 9) Full dress 10) Tail coat 11) Tails 12) White tie 13) White tie and tails
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https://www.crosswordclues.com/clue/tailcoat

1) Tails
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https://www.crosswordclues.com/clue/tailcoat

A tailcoat is a coat with the front of the skirt cut away, so as to leave only the rear section of the skirt, known as the tails. The historical reason coats were cut this way was to make it easier for the wearer to ride a horse, but over the years tailcoats of varying types have evolved into forms of formal dress for both day and evening wear. Al...
Found on
http://en.wikipedia.org/wiki/Tailcoat

(from the article `dress`) ...dress slowly became stereotyped, etiquette having laid down detailed regulations for the attire to be worn for different occasions, for different ...
Found on
http://www.britannica.com/eb/a-z/t/5

A tailcoat (also known as a cutaway) is a gentleman's long coat, cut away at the front and split at the back, giving the impression of a tail. The tailcoat evolved in England among the horse-riding gentry who found the conventional long coat too awkward for horse riding, and so had the lower front part removed and the back split to allow sitting as...
Found on
http://www.probertencyclopaedia.com/browse/PT.HTM
No exact match found.