Utter contempt in this style (4)
I believe the answer is:
'utter contempt' is the definition.
'hiss' can be an answer for 'utter' (hissing is a kind of uttering). I'm not certain of the 'contempt' bit.
'in this style' is the wordplay.
'in' indicates a hidden word.
'HISS' is hidden within 'this style'.
Can you help me to learn more?
(Other definitions for hiss that I've seen before include "Sound of escaping gas" , "Show disapproval" , "Audio interference" , "Make sibilant sound like snake" , "Sibilant sound made through the teeth" .)