Cassandra Clare
Judith Lewis (née Rumelt, born July 27, 1973), better known by her pen name Cassandra Clare, is an American author of young adult fiction, best known for her bestselling series ""The Mortal Instruments".
Jeremy Hoad
Jeremy Hoad is best known as co-author of the BBC Doctor Who novel, "The Blue Angel" (with partner, Paul Magrs).
 The Blue Angel has been adapted to script form by Piers Britton and was used as the basis of a course at the University of Redlands in Southern California in 2007.
 On 29th April 2016, Hoad admitted in an interview on Manchester's All FM to having very limited involvement in the writing of the novel, and stated that his role was largely limited to proof reading.
Annie Dalton
Annie Dalton, born 18 January 1948 in Dorset, is a British children's author, perhaps best known for writing the "Agent Angel" series, formerly known as the "Angels Unlimited" series, and now retitled The Angel Academy.
Joe Clifford Faust
Joe Clifford Faust (born 1957) is an American author best known for his seven science fiction novels primarily written during the 1980s and 1990s, including "A Death of Honor", "The Company Man", the "Angel's Luck" Trilogy (all published by Del Rey Books), and the satirical Pembroke Hall novels (published by Bantam Spectra).
 His novels are known for their tightly controlled plots and their sense of humor.
The Death of Bunny Munro
The Death of Bunny Munro is the second novel written by Nick Cave, best known as the lead singer of Nick Cave and the Bad Seeds.
 His first novel, "And the Ass Saw the Angel", was published in 1989.
Jose Baez (lawyer)
Jose Angel Baez (born October 17, 1968) is an American lawyer and "New York Times" best selling author.
 He is best known as the lead attorney for Casey Anthony, who was acquitted of murder in July 2011 after a trial that attracted significant national and international attention.
Salim Ismail
Salim Ismail (born May 17, 1965 in Hyderabad, India) is a Canadian serial entrepreneur, angel investor, author, sought-after speaker, and technology strategist.
 He is best known as the Founding Executive Director of Singularity University and lead author of ""Exponential Organizations"".
 In March 2017, he was named to the board of the XPRIZE Foundation.
Tim Fargo
Tim Fargo is an American author, keynote speaker, angel investor and entrepreneur.
 He is the author of "Alphabet Success" and "Claimants and Lies and Videotape - A Claim's Handler's Guide to Surveillance".
 Fargo is best known for co-founding insurance fraud investigative company, Omega Insurance Service in 1996, that became the second biggest insurance fraud investigative company in the United States, acquired by First Advantage in 2003 for $20 million.
 He currently serves as the President of Hammerfest Corp and writes for The Los Angeles Times, St. Petersburg Times, Business Insurance, Claims Journal and Claims magazine on the insurance sector.
L.A. Weatherly
L.A. Weatherly, also known as Lee Weatherly and Titania Woods, is an American author.
 She was born in 1967 and grew up in Little Rock, Arkansas in the USA.
 She lives with her husband in The Scottish Borders, UK.
 She's written over fifty books for children and young adults, and is best known for her YA trilogy "Angel".
 The first title in the series, "Angel", was published in 2010.
 The second, "Angel Fire", came out in 2012; the final title in the series, "Angel Fever", was published in 2013.

Question: Which novel is the author of Clockwork Angel best known for?
Answer: The Mortal Instruments