Mental state (4)
I believe the answer is:
mood
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mental state</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for mood that I've seen before include "State of mind, humour" , "Doom (anag)" , "Humour - bad temper" , "An atmosphere of doom" , "Frame of mind" .)