Second tale about teenager (10)
I believe the answer is:
adolescent
'teenager' is the definition.
(synonyms)
'second tale about' is the wordplay.
'about' indicates an anagram.
'second'+'tale'='secondtale'
'secondtale' with letters rearranged gives 'ADOLESCENT'.
(Other definitions for adolescent that I've seen before include "sixth-former, say" , "Developing" , "Immature" , "Youngster" , "Person in child-adult transition" .)