In poetry, Siegfried was a British hero! (7)
I believe the answer is:
sassoon
This might be a double definition.
'in poetry siegfried' is the first definition.
The definition suggests a singular noun which matches the answer.
'a british hero' is the second definition.
The definition suggests a singular noun which matches the answer.
'was' is the link.
Can you help me to learn more?
(Other definitions for sassoon that I've seen before include "Poet condemning war" , "Siegfried --, English writer" , "Siegfried --, English poet and novelist" , "Siegfried --, poet and writer" , "Siegfried ---, war poet" .)