Element of intro wrong: information to follow (8)
I believe the answer is:
nitrogen
'element' is the definition.
(chemical element)
'intro wrong information to follow' is the wordplay.
'wrong' is an anagram indicator.
'information' becomes 'gen' (gen can informally mean information).
'to follow' says to put letters next to each other (some letters go after or follow others).
'intro' is an anagram of 'nitro'.
'nitro'+'gen'='NITROGEN'
'of' acts as a link.
(Other definitions for nitrogen that I've seen before include "Most prevalent gas in air" , "Common gas, N" , "creates much atmosphere" , "Major constituent of air" , "It constitutes 78 percent of the atmosphere" .)