Hangers-on in cold weather (7)
I believe the answer is:
icicles
'hangers-on in cold weather' is the definition.
Although both the answer and definition are plural nouns, I can't see how one could define the other.
This is the entire clue.
Can you help me to learn more?
(Other definitions for icicles that I've seen before include "Frozen pendants" , "'When ... hang by the wall / And Dick the shepherd blows his nail' (Shakespeare)" , "Hanging spikes of frozen water" , "They hang by the wall (L.L.Lost)" , "Frozen drips" .)