Colorado skiing destination (5)
I believe the answer is:
aspen
'colorado skiing destination' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aspen that I've seen before include "Tree, kind of poplar" , "winter resort" , "Tree with shivering leaves" , "A poplar with shivering leaves" , "Colorado ski resort - tree" .)