Become timid (4,4,5)
I believe the answer is:
lose ones nerve
(Other definitions for lose ones nerve that I've seen before include "become suddenly afraid" , "bottle out" .)
I've seen this clue in The Guardian.
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.