Unconscious after dropping off front of ledge, losing blood externally? (8)
I believe the answer is:
sleeping
'unconscious after dropping off' is the definition.
(to drop off can mean to fall asleep)
'front of ledge losing blood externally?' is the wordplay.
'front of' indicates taking the first letters.
'losing blood' becomes 'seeping' (blood seeping out).
'externally?' means one lot of letters goes inside another (some letters go on the outside of others).
The first letter of 'ledge' is 'l'.
'l' placed within 'seeping' is 'SLEEPING'.
(Other definitions for sleeping that I've seen before include "In the land of Nod" , "Dormant" .)