Thanks Candledave, I'll carry on thinking, as I was pretty sure I had done as the rubric asked.
0pt0, 22a replaces the obvious single letter abbreviation in a word for men, with a 3-letter word that loses a letter. Definition is a breed. 26d has word for 'with', less a letter, added to word for slacking, less a single-letter abbreviation for setter. 9d has me stumped too.