In Wales, a name for wintry weather (7)
I believe the answer is:
snowdon
'in wales' is the definition.
The definition suggests a singular noun which matches the answer.
'a name for wintry weather' is the wordplay.
'a name' becomes 'Don'.
'for' means one lot of letters go next to another (I've seen this in other clues).
'wintry weather' becomes 'snow' (I've seen this before).
'don' after 'snow' is 'SNOWDON'.
Can you help me to learn more?
(Other definitions for snowdon that I've seen before include "Highest point of England and Wales" , "High spot in Wales" , "Highest mountain in Wales" , "Welsh mountain" , "Highest Welsh peak" .)