"The Vampire Diaries" actor Somerhalder (3)
I believe the answer is:
ian
'the vampire diaries actor somerhalder' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ian that I've seen before include "- - Wallace (baritone)" , "- Fleming (James Bond)" , "Albert Beale's first name in EastEnders" , "Sir - McKellen, actor" , "Botham or Chappell?" .)