Haemorrhaged (4)
I believe the answer is:
bled
'haemorrhaged' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bled that I've seen before include "Seeped (into an adjoining colour)" , "Extracted blood as treatment" , "Lost blood" , "Showed effects of injury" , "Haemorrhaged" .)