"The Incredibles" family name (4)
I believe the answer is:
parr
'the incredibles family name' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for parr that I've seen before include "Wife who survived" , "Henry's sixth (his third 7!)" , "Catherine --, Henry VIII's sixth wife" , "Fish" , "Katherine --, last wife of Henry VIII" .)