Sunday world
3d Venue in the Curragh, where a famous bare-knuckle Irish champion defeated his English challenger in 11 rounds (9,6) D?N?E?L?????L?W
18a The first money or barter taken in, as by a new business or on the opening day of business, a good-luck present (7) ??N???L
22a Originating in the US, a durable cotton twill cloth used mainly in trousers (5) ??i??
17d A digit representing the sum of the digits in an instance of digital data (8) ?????S?M
Need a bloody degree today to do it.
Many thanks