clientが一人ひとりの顧客であるのに対してclienteleは顧客全般のことです。0:46 breezing through the clientele, spinning yarns that were so lyrical
http://www.youtube.com/watch?v=8GtorIYD1Uk 2:20 I lost a lot of clients. 大勢の顧客を失った
http://www.youtube.com/watch?v=GEH-VI950Yw&feature=related 3:13 we and all of their clients are waiting. うちらとあの二人の顧客が待っている
http://www.youtube.com/watch?v=K1GpdG7rdwA 1:48 the clientele here includes bankers, artists and those who want to be hip. ここの客層は金融業者、芸術家や事情通たちだ。