Blood and guts in the extremes of gothic architecture (4)
I believe the answer is:
gore
'blood' is the definition.
('gore' can be a synonym of 'blood')
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for gore that I've seen before include "Showing guts" , "Bloodshed" , "Blood that's been shed" , "Clotted blood" , "it's a queasy sight" .)