22D The largest sub-branch of the Niger-Congo languages Benue ? 29a Song sung over the closing credits of the Gerry Anderson programme Stingray Aquamarina ? These two clues don't match if 22d is Benue...
19 across. An authoritative regulation, decree, law or practice (9)
I have O??i?a?y?
14 down. A tall annual grass cultivated for its yellow edibleseeds (5)
I have ?A??E
Many thanks...