Complex dye Norm's removed (8)
I believe the answer is:
syndrome
'complex' is the definition.
(syndrome is a kind of complex)
'dye norm's removed' is the wordplay.
'removed' is an anagram indicator (moved again).
'dye'+'norms'='dyenorms'
'dyenorms' with letters rearranged gives 'SYNDROME'.
(Other definitions for syndrome that I've seen before include "Complex of concurrent things" , "Group of symptoms usually occurring together" , "Set of linked symptoms" , "behaviour pattern ..." , "Group of linked symptoms" .)