Awful creep I'd stabbed (7)
I believe the answer is:
pierced
'stabbed' is the definition.
(I've seen this before)
'awful creep i'd' is the wordplay.
'awful' is an anagram indicator.
'creep'+'id'='creepid'
'creepid' with letters rearranged gives 'PIERCED'.
(Other definitions for pierced that I've seen before include "stabbed" , "Run through" , "Holed" , "Punctured" , "Transfixed" .)