Mist (3)
(Other definitions for fog that I've seen before include "Thick mist" , "Bafflement" , "Heavy mist" , "Miasma" , "Obscure" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mist</span>' is the definition.<br/ ><span class="explanation-format__explanation">(haze can mean a mist)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for haze that I've seen before include "Mist or shimmer due to heat" , "State of mental confusion - mist" , "Lack of definition or precision" , "Vapour" , "Daze, fog" .)