Italian scorer commits second offence in Ireland (7)
I believe the answer is:
rossini
'italian scorer' is the definition.
(composer Gioachino Rossini wrote musical scores)
'second offence in ireland' is the wordplay.
'second' becomes 's' (common abbreviation).
'offence' becomes 'sin' (a sin is an offence or transgression).
'in' means one lot of letters goes inside another.
'ireland' becomes 'roi' (Republic of Ireland).
's'+'sin'='ssin'
'ssin' going inside 'roi' is 'ROSSINI'.
'commits' is the link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for rossini that I've seen before include "opera producer" , "whose barber was in Seville" , "Composer of 'The Barber of Seville' and 'William Tell'" , "Italian opera composer" , "Gioacchino ---, It. composer" .)