Morose (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">morose</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that morose can be written as sour)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sour that I've seen before include "'Having a sharp, biting taste (4)'" , "Acid - bitter" , "Disparagement of something one can't have oneself" , "Acetic" , "Tart, acidic" .)
(Other definitions for glum that I've seen before include "Moody and depressed" , "Sullen or dismal" , "Moody and melancholic" , "Melancholy" , "Downcast and gloomy (4)" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">morose</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that morose can be written as sullen)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sullen that I've seen before include "Morose and petulant" , "'Moody, morose (6)'" , "Bad-tempered and sulky" , "Resentful and unsociable in mood" , "Baleful" .)