Bite from bloodied gentleman (4)
I believe the answer is:
edge
'bite' is the definition.
(I've seen this in another clue)
'from bloodied gentleman' is the wordplay.
'from' says the answer is hidden in the clue.
'EDGE' is hidden within 'bloodied gentleman'.
(Other definitions for edge that I've seen before include "The part farthest from the middle" , "Bite" , "Some bordering" , "Periphery" , "Rim - move gradually" .)