In the summer of 2006 the second cycle of Living TV's Britain's Next Top Model hit UK screens and Clancy featured as one of the thirteen finalists in the competition, competing over 10 weeks for a desired modelling contract. Clancy was determined to go far in the competition, but was criticized for being more glamour than high fashion. Clancy made it to the final runway show with fellow contestant Lianna Fowler, but at the final judging Clancy lost out to Fowler, who won the judge's hearts because of her very editorial look. It was during the show, which coincided with the 2006 FIFA World Cup, that her relationship with football star Peter Crouch was revealed. This together with Britain's next top model caused her to make headlines and start a successful media career.Clancy has appeared as a talking head in the documentaries Slave to Fashion and The Ultimate Bikini Guide for Channel 4, as a guest on programmes such as Richard and Judy, The Chris Moyles Show, Friday Night with Jonathan Ross, GMTV and in her own Reality TV series Abbey and Janice: Beauty and the Best which followed her attempts to break the Los Angeles modelling scene guided by Janice Dickinson who acted as her mentor. The show aired from 14 May to 18 June 2007 on Living TV and also followed her as she walked the runway for Christian Audigier's Ed Hardy fashion line. In 2008 the series aired on the US network Oxygen.