Thanks, Gitto. I'll have a look.
5. Misprint is in the first word. The answer is an unusual spelling of a more common word.
6. Synonym for Viking with additions and omission provides a derogatory term for the last word.
I can't parse 23 but the answer is a synonym for the first word.
24. Definition is the first two words. The wordplay is a bit convoluted: removing a letter from a synonym for the penultimate word (not the weather sort) will get you most of the answer.
18. Wordplay is a literal definition of Geordies but missing the last letter, followed by an abbreviation of the Latin for 'in the year'.