Blood drive volunteer (5)

I believe the answer is:

donor

(Other definitions for donor that I've seen before include "Someone providing" , "Generous type" , "Charitable giver" , "Maker of gift" , "Supporter" .)

I've seen this clue in the Newsday.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.