Obstacle to visibility (4)
I believe the answer is:
haze
(Other definitions for haze that I've seen before include "A thin mist, perhaps from heat" , "Daze, fog" , "Fish of salmon family" , "Slight atmospheric mist" , "Mistiness" .)
I believe the answer is:
haze
(Other definitions for haze that I've seen before include "A thin mist, perhaps from heat" , "Daze, fog" , "Fish of salmon family" , "Slight atmospheric mist" , "Mistiness" .)