Very grateful for any help with my last three.
17ac: "Jam setting (4)." I have S-O-.
19dn: "Family title embracing current nation (8)." I have -U-I-A-E.
37dn: "Absurd flier passed round university, one offering plenty of expletives (5,5)." I have -O-T-/M-U-H.
It is easily done. The two words I have particular problem with are from and form. For some reason from often comes out as form, but not vice versa. Odd, that.