Rage of street men prepared to fight about nothing (5)
I believe the answer is:
storm
'rage' is the definition.
('storm' can be a synonym of 'rage')
'street men prepared to fight about nothing' is the wordplay.
'street' becomes 'st'.
'men prepared to fight' becomes 'rm' (Royal Marines**).
'about' means one lot of letters go next to another.
'nothing' becomes 'o' (looks like zero - 0).
'rm' put after 'o' is 'orm'.
'st'+'orm'='STORM'
'of' is the link.
(Other definitions for storm that I've seen before include "Violent outburst" , "violent reaction" , "Furore" , "Big fuss" , "Assault (with troops)" .)