Rile mob maybe and start trouble (7)
I believe the answer is:
embroil
'start trouble' is the definition.
'embroil' can be an answer for 'trouble' (thesaurus). I'm not sure about the 'start' bit.
'rile mob maybe' is the wordplay.
'maybe' indicates anagramming the letters.
'rile'+'mob'='rilemob'
'rilemob' is an anagram of 'EMBROIL'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for embroil that I've seen before include "Involve or entangle in" , "Involve (someone) in trouble" , "Involve (a person) in some sort of trouble" , "get into trouble" , "Entangle (in difficulties)" .)