Cold season (6)
I believe the answer is:
winter
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cold season</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for winter that I've seen before include "Cold period" , "Time for mittens and scarves?" , "Cold season" , "'If . . . . . . comes, can spring be far behind?'" , "period of discontent?" .)