Frozen drip (6)
I believe the answer is:
icicle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">frozen drip</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 icicle that I've seen before include "Frozen water-drips" , "Pendent spear of frozen water" , "Tapering frozen water" , "Winter spike" , "Frozen finger of liquid" .)