Nelson - 1d is a derogatory Canadian term given to people from Newfoundland. 1ac is thematic as are 20ac, 24ac, 41ac, 5d, 7d, 9d, 26d, 28d and 33d. Their solutions are then anagrammed according to broken down segments of the 'paragraph' in the preamble. All resulting words are proper names that have something in common.