Winter hanger-on? (6)
I believe the answer is:
icicle
'winter hanger-on?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for icicle that I've seen before include "Frozen water stalactite" , "Winter hanger" , "Hanging spike of frozen water" , "Frozen water drops" , "Winter spike" .)