Blood (4)
'blood' is the definition.
(gore means blood or violence)
This is the entire clue.
(Other definitions for gore that I've seen before include "Poetic blood from Al?" , "stuff from part of Kensington" , "Showing guts" , "Result of bleeding" , "Pierce or wound with a horn or tusk" .)
(Other definitions for hot that I've seen before include "Intense - illegal - dangerous" , "Flaming - stolen" , "Torrid" , "Flaming - spicy" , "Radioactive; very warm" .)
(Other definitions for bad that I've seen before include "Evil, below standard or off" , "Wicked" , "not healthy" , "Harmful" , "SECOND HALF OF 16" .)