Version of chart hit we miss making bestselling record (5,9)
I believe the answer is:
white christmas
'bestselling record' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'version of chart hit we miss' is the wordplay.
'version of' is an anagram indicator.
'chart'+'hit'+'we'+'miss'='charthitwemiss'
'charthitwemiss' with letters rearranged gives 'WHITE CHRISTMAS'.
'making' is the link.
Can you help me to learn more?
(Other definitions for white christmas that I've seen before include "What Bing Crosby dreamed of" , "song" , "A standard" .)