Frozen spikes (7)
I believe the answer is:
icicles
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">frozen spikes</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for icicles that I've seen before include "They hang by the wall (L.L.Lost)" , "'When ... hang by the wall / And Dick the shepherd blows his nail' (Shakespeare)" , "Frozen stalactites" , "Frozen drips" , "Pendent spears of frozen water (7)" .)