As regards 8 Dn, I agree with 1234matt that the Y was probably dropped by accident - Mr Tim Moorey has a little bit of form in these errors.
My query is to do with 12 Ac, which I cannot parse to my satisfaction :- Good case for protective clothing in clubs perhaps (6,4) S???N? S?I?. It looks as if it has to be STRONG SUIT, but is that really synonymous with "Good case"? I also can't accept TRONGS ("protective clothing"?) inside S.....UIT ("clubs perhaps"). And if protective clothing is supposed to be the two words STRONG SUIT, then in "in clubs perhaps" is totally superfluous. Help would be appreciated. TIA.