Veins’ fluid (5)

I believe the answer is:

blood

(Other definitions for blood that I've seen before include "Fluid in veins" , "Fiery temperament" , "Vein filler" , "Gore" , "It contains plasma and platelets" .)

I've seen this clue in The Mirror.

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.