It is involved with change in education (8)
I believe the answer is:
teaching
'education' is the definition.
(synonyms)
'it is involved with change' is the wordplay.
'is involved with' indicates an anagram (involved can mean confusing or complex).
'it' mixed up with 'change' gives 'TEACHING'.
'in' is the link.
(Other definitions for teaching that I've seen before include "Training" , "Educating" , "Imparting skills or knowledge" , "exercise ..." , "Instruction" .)