Unnerved, thrown off balance (12)
I believe the answer is:
disconcerted
(Other definitions for disconcerted that I've seen before include "Unsettled" , "Second credit (anag) - thrown" , "All shook up"" , "Disturbed the composure of" .)
I believe the answer is:
disconcerted
(Other definitions for disconcerted that I've seen before include "Unsettled" , "Second credit (anag) - thrown" , "All shook up"" , "Disturbed the composure of" .)