Holiday area, cold, with unusual pastime (8)
I believe the answer is:
campsite
'holiday area' is the definition.
The definition suggests a singular noun which matches the answer.
'cold with unusual pastime' is the wordplay.
'cold' becomes 'c' (eg on taps).
'with' means one lot of letters go next to another.
'unusual' indicates anagramming the letters.
'pastime' with letters rearranged gives 'ampsite'.
'c'+'ampsite'='CAMPSITE'
Can you help me to learn more?
(Other definitions for campsite that I've seen before include "Location for pitching tents" , "for temporary accommodation" , "Ground for tents" .)