I have solved the puzzle except for 3 clues. I have 5 members of the group.
Clues below MAY have an incorrect letter in the wordplay but the word with correct letter is grid entry.
20. Setter's upset about attitude shown by lassie (5)
29. A lot of upset I had getting flowering plant (4)
35. Calls lift that doesn't stop? (4)
Thanks NAC.
Did not know the word Mairi. I'm upset over air.
Thought calls was hoys but checked Chambers.
Not sure how 29 parses. Why IR is A lot of upset. Then I'd for I had.