Chronicles of Aslan revolving around Narnia's opening (6)
I believe the answer is:
'chronicles' is the definition.
(I've seen this before)
'aslan revolving around narnia's opening' is the wordplay.
'revolving' indicates anagramming the letters (letters turning or twisting around).
'around' is an insertion indicator.
'opening' suggests taking the first letters.
The initial letter of 'narnia' is 'n'.
'aslan' with letters rearranged gives 'anals'.
'anals' going around 'n' is 'ANNALS'.
'of' is the link.
(Other definitions for annals that I've seen before include "Record of events year by year" , "Registers" , "Tomorrow (Spanish)" , "The Four Masters wrote them in 17th century" , "Chronicles" .)