I am fairly confident of this ID, even though it is not growing on or at the top of a cliff. The character in the Plantnet key which distinguishes it from Dracophyylum secundum is that the leaf edges are smooth, while those of Dracophyllym secundum are finely toothed.
Agree with D. oceanicum, a species restricted to the Jervis Bay area, growing on sandstone cliffs not far from the sea. A larger plant than D.secundum.