19(a) Tree native to New Zealand (5) N _ A _ O 26(a) 20th century motor-cycle and motorcar designer born in Hillsborough. (3,10) R _ X _ C _ A _ D _ E _ S. 31(a) Two horses moving about in pain.(7) N _ G _ I _ G. Think it is 'Nagging' but dont see how this comes from clue. Any help appreciated - last 3.