Narnia lion (5)
I believe the answer is:
aslan
'narnia lion' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for aslan that I've seen before include "Lewis's character" , "Noble lion" , "Narnia's "Great Lion"" , "Saviour figure" , "Lion in the Chronicles of Narnia" .)