Deep trouble following street in the morning rush (8)
I believe the answer is:
stampede
'rush' is the definition.
(thesaurus)
'deep trouble following street in the morning' is the wordplay.
'trouble' indicates an anagram.
'following' says to put letters next to each other.
'street' becomes 'st'.
'in the morning' becomes 'am'.
'deep' with letters rearranged gives 'pede'.
'st'+'am'='stam'
'pede' after 'stam' is 'STAMPEDE'.
(Other definitions for stampede that I've seen before include "uncontrolled flight" , "Panic-driven rush of herd of animals" , "Panic-stricken charge of cattle" , "Flight of cattle in panic" , "Sudden mass rush" .)