He has appeared as a consultant historian in a number of BBC documentaries, and cowrote the nonfiction book The 1066 Malfosse Walk with Joanne Lawrence in 2000.

In the late 1990s, Clephane-Cameron initiated and led a successful national protest against alterations proposed by English Heritage to Battle Abbey to include a Tea Rooms and service road on a portion of the historic battlefield.

In 2000, Clephane-Cameron wrote The 1066 Malfosse Walk, which talks about the closing events of the Battle of Hastings in which the fleeing Saxons briefly stood against a pursuing group of Norman knights and nearly succeeded in killing Duke William.

In 2015, Clephane-Cameron joined with Keith Foord to publish a collection of essays on the preludes, events, and postscripts of the Battle of Hastings.

Clephane-Cameron appeared in the BBC production of Henry V released in 2012 as part of their cycle of Shakespeare films.