Report of what happened at northern karaoke? Inside, it’s painful, it’s smoky! (7,8)

'report of what happened' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'at northern karaoke? inside it's painful it's smoky' is the wordplay.
I cannot really understand how this works, but
'at' could be 'on' (location) and 'on' is present in the answer.
'northern' could be 'n' (abbreviation e.g. N. Ireland) and 'n' is located in the answer.
'it' could be 'sa' (old-fashioned abbreviation for sex appeal) and 'sa' is located in the answer.
'it's painful' could be 'ouch' (expression of pain) and 'ouch' is found within the answer.
This explanation may well be incorrect...