Goliath running wild, inspiring northern hatred (8)
I believe the answer is:
loathing
'hatred' is the definition.
(I know that loathing is a type of hatred)
'goliath running wild inspiring northern' is the wordplay.
'running wild' indicates anagramming the letters.
'inspiring' indicates putting letters inside.
'northern' becomes 'n' (abbreviation e.g. N. Ireland).
'goliath' anagrammed gives 'loathig'.
'loathig' placed around 'n' is 'LOATHING'.
(Other definitions for loathing that I've seen before include "Intense dislike" , "Disliking intensely" , "Detesting" , "Abhorring" , "Hatred, disgust" .)