Wake up, hearing disturbances (5)
I believe the answer is:
rouse
'wake up' is the definition.
(rouse can mean to wake up)
'hearing disturbances' is the wordplay.
'hearing' indicates a 'sounds like' (homophone) clue.
'disturbances' becomes 'rows'.
'rows' sounds like 'ROUSE'.
(Other definitions for rouse that I've seen before include "Cause to become awake" , "Make angry" , "Get going" , "Provoke" , "Activate, wake up" .)