Bodily defence reaction to an antigen (6,8)
I believe the answer is:
immune response
(Other definitions for immune response that I've seen before include "One's not affected by the answer" , "What protects against infection" .)
I've seen this clue in the Sydney Morning Herald.
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.