Rile mob perhaps 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 perhaps' is the wordplay.
'perhaps' indicates an anagram.
'rile'+'mob'='rilemob'
'rilemob' is an anagram of 'EMBROIL'.
'and' is the link.
Can you help me to learn more?
(Other definitions for embroil that I've seen before include "get into trouble" , "Involve in trouble - rile mob (anag)" , "Involve (someone) in a dispute" , "Implicate" , "Incriminate" .)