Street or motorway rage (5)
I believe the answer is:
storm
'rage' is the definition.
('storm' can be a synonym of 'rage')
'street or motorway' is the wordplay.
'street' becomes 'st'.
'motorway' becomes 'm'.
'st'+'or'+'m'='STORM'
(Other definitions for storm that I've seen before include "rage" , "Destructive wind" , "Big fuss" , "Attack and capture (a place)" , "Sudden attack" .)