Shivering time with wind, right? (9)
I believe the answer is:
midwinter
'shivering time with wind right?' is the definition.
I can't judge whether this definition defines the answer.
'shivering time with wind right?' is the wordplay.
'shivering' indicates an anagram.
'with' is a charade indicator (letters next to each other).
'right?' becomes 'r' (common abbreviation).
'time' put after 'wind' is 'windtime'.
'windtime' with letters rearranged gives 'midwinte'.
'midwinte'+'r'='MIDWINTER'
(Other definitions for midwinter that I've seen before include "height of season?" , "Date of holy birth" , "Bleakest time of year?" .)