Seven points down at the half way stage, any slim hopes of a Clare victory in this Munster SFC semi-final disappeared early in the second half when they were reduced to thirteen men, with the sending off of midfielder David Russell and wing-back Ronan Slattery in separate incidents.
Cork had wing-back Martin Cronin sent off a few minutes later but they still had too much power for the home side and were full value for their victory played before a disappointing attendance of 5,258.
The sides exchanged points in the opening ten minutes but with James Masters directing operations for the visitors, Cork then hit six without reply and at half-time they were 0-10 to 0-3 in front.
Corner-forward Michael Cronin was another who stood out for the visitors who controlled matters at midfield and in the half-back line.
Each side managed just one point in the third quarter, but with the numerical advantage Cork took control again and six more points without reply left Clare well beaten and heading for the qualifiers.
Anthony Lynch excelled for the Leesiders at centre-back and regularly roamed forward to set up scoring chances. Martin Cronin, Graham Canty, Derek Kavanagh, Sean Levis, James Masters and Michael Cronin were others who stood out on a day when they were rarely tested.
Ronan Slattery, until sent off, Odran O'Dwyer and Rory Donnelly tried for Clare, but they rarely threatened and were a long way off the pace on the day.