Lout turning up in audition put a stop to One Direction, perhaps (3,4)
I believe the answer is:
boy band
'one direction perhaps' is the definition.
(One Direction is an example)
'lout turning up in audition put a stop to' is the wordplay.
'lout' becomes 'yob' (I've seen this before).
'turning up' says the letters should be written in reverse.
'in audition' indicates a 'sounds like' (homophone) clue (audition can mean hearing).
'put a stop to' becomes 'banned'.
'banned' is a homophone of 'band'.
'yob' written backwards gives 'boy'.
'boy'+'band'='BOY BAND'
(Other definitions for boy band that I've seen before include "Group of young males" , "One Direction, for example?" , "performers" .)