Low spirits (8)
I believe the answer is:
doldrums
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">low spirits</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for doldrums that I've seen before include "Belt of calms in equatorial oceans" , "equatorial area" , "blues" , "Depressed state - area around the Equator" , "dumps" .)