Ronnie Barker's character in Porridge (8)
I believe the answer is:
fletcher
'ronnie barker's character in porridge' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for fletcher that I've seen before include "Arrow maker" , "Ronnie Barker's character in Porridge" , "Christian, perhaps" , "Old playwright" , "Manufacturer of bows and arrows" .)