Noise woke husband in real rage initially (5)
I believe the answer is:
whirr
'noise' is the definition.
(whirring noise)
'woke husband in real rage initially' is the wordplay.
'initially' indicates taking the first letters.
The first letters of 'woke husband in real rage' is 'WHIRR'.
(Other definitions for whirr that I've seen before include "Humming sound" , "Spinning hum" , "Sound of rapid spinning or vibrating" , "Spin noisily" , "Revolve humming" .)