Help artist upset in piece for newspaper (8)
I believe the answer is:
guardian
'newspaper' is the definition.
(UK newspaper)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for guardian that I've seen before include "Champion - paper" , "One in loco parentis" , "Protector or watchful angel" , "Caretaker" , "Platonic leader" .)