Unmasking, revelation (8)
I believe the answer is:
exposure
I believe this clue is a double definition.
'unmasking' is the first definition.
(I've seen this before)
'revelation' is the second definition.
(I know that exposure is a type of revelation)
(Other definitions for exposure that I've seen before include "illness caused by cold" , "Unmasking" , "public attention" , "could cause one's death" , "Display (or removal) of protection" .)