There are several artists named Clockwork.
1. Henry Steinway- House/Electro DJ/Producer out of Los Angeles, CA. (http://www.myspace.com/clockworkhomie/)
2) Clockwork is an alias of Ralf Uhrlandt.
3) Clockwork is a danish Melodic Metalcore band...(http://www.clockworkmetal.com/)
4) Clockwork is a Reading, United Kingdom based Melodic Death Metal Band. They have recently released their first EP, The Veil. (http://www.myspace.com/clockworkmetal) Read more on Last.fm