CID isn't involved - time is different (8)
I believe the answer is:
distinct
'different' is the definition.
(thesaurus)
'cid isn't involved time' is the wordplay.
'involved' indicates an anagram (involved can mean confusing or complex).
'time' becomes 't' (abbreviation).
'cid'+'isnt'='cidisnt'
'cidisnt' with letters rearranged gives 'distinc'.
'distinc'+'t'='DISTINCT'
'is' acts as a link.
(Other definitions for distinct that I've seen before include "Clearly outlined and easy to see" , "Well-defined and clear" , "detached" , "Definite and unmistakeable" , "Plain" .)