Element of comic seen to change (9)
I believe the answer is:
manganese
'element' is the definition.
(manganese is a chemical element)
'comic seen to change' is the wordplay.
'comic' becomes 'manga' (type of Japanese comic).
'to change' is an anagram indicator.
'seen' is an anagram of 'nese'.
'manga'+'nese'='MANGANESE'
'of' acts as a link.
(Other definitions for manganese that I've seen before include "Element - Anne's game (anag)" , "Metal used in some steels" , "Metallic element, Mn" , "Metal used in steel alloys" , "Hard grey metal, Mn" .)