Corpse is gory: look out (4)
I believe the answer is:
body
'corpse' is the definition.
(thesaurus)
'gory look out' is the wordplay.
'gory' becomes 'bloody' ('bloody' can be similar in meaning to 'gory').
'look' becomes 'lo'.
'out' suggests deleting specific letters.
'bloody' with 'lo' removed is 'BODY'.
'is' is the link.
(Other definitions for body that I've seen before include "Carcase" , "Individual" , "Stiff" , "Substance" , "Full flavour in wine" .)