Catty Pope who got canonised (7)
I believe the answer is:
leonine
This clue is a double definition.
'catty' is the first definition.
(like a lion, type of big cat)
'pope who got canonised' is the second definition.
(Pope Leo IX - Leo Nine in Roman numerals)
(Other definitions for leonine that I've seen before include "Beastly" , "As one with pride" , "Characteristic of a lion" , "Description of pride" , "verse" .)