9ac Real ivory (7) n?????l natural ?
3dn Demonstrate competitive people gathering to get a taste of really strong ale (5,4) m???h ?e??
17ac Backsliding brother of the compiler's received cut (7) f?r????
26ac French citizen one business is settling in Tyne and Wear? (7) ??c?i?e cocaine ?
thanks dannyk13 finding this very difficult today.
17ac is now f?r?r??
21ac and 23: Mug, owing -- but not the mamma and singer (5,9) r?b?n ????r?a?t must be Robin Redbreast ???
If above is right the 18dn Not the first to check school soup (7) is ??r?s?h = bortsch
If that is right 17ac ends in b !
I wonder if there is some mistake somewhere