A new outburst dismissing universal apprehension (5)
I believe the answer is:
angst
'apprehension' is the definition.
(I've seen this in another clue)
'a new outburst dismissing universal' is the wordplay.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'outburst' becomes 'gust' (a burst of wind).
'dismissing' suggests deleting specific letters.
'universal' becomes 'U' (film certificate).
'gust' with 'u' taken out is 'gst'.
'a'+'n'+'gst'='ANGST'
(Other definitions for angst that I've seen before include "General feeling of anxiety" , "Anguish" , "Oppressive feeling of worry, guilt" , "Nonspecific sense of anxiety" , "Great anxiety" .)