Enthusiastically greet cold weather? (4)
I believe the answer is:
hail
This clue is a triple definition!
'enthusiastically greet' is the first definition.
(I've seen this before)
'cold' is the second definition.
(I've seen this before)
'weather?' is the third definition.
(hail is a kind of weather)
(Other definitions for hail that I've seen before include "Stones from the sky" , "Greet loudly" , "Precipitation - old greeting" , "wintry weather" , "Hard Rain?" .)