One giving blood (5)
I believe the answer is:
donor
(Other definitions for donor that I've seen before include "Sponsor" , "Philanthropist" , "Maker of gift" , "A giver, often of blood" , "patron" .)
I believe the answer is:
donor
(Other definitions for donor that I've seen before include "Sponsor" , "Philanthropist" , "Maker of gift" , "A giver, often of blood" , "patron" .)