You going to have to get this one yourself, but I'll give you another couple of hints.
10A A cake's returned with layers.
Write a type of cake backwards and you'll get a layered rock formation. That will give you the fourth letter of 1D and it's not "D". Now look up the French translation of a form of ammunition. and you'll get 1D.
HTH
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Hi PHILIP,
It seems the hurricane which should have got you in Florida has come over here instead. Hoist and petard come to mind!