Nasty ogre creating bloodshed (4)
I believe the answer is:
gore
'bloodshed' is the definition.
(I know that bloodshed can be written as gore)
'nasty ogre' is the wordplay.
'nasty' is an anagram indicator (a nasty or wrong spelling).
'ogre' is an anagram of 'GORE'.
'creating' acts as a link.
(Other definitions for gore that I've seen before include "Impale" , "Bloodshed" , "Pierce with horn - blood" , "Coagulated blood from a wound" , "Make a hole in" .)