Yes looks like _Alphitonia excelsa_ or a different _Alphitonia_ species such as _A. petriei_ .
Confirming this does not identify to a _Ficus_ species. For example check these photographs for _Ficus_ stipules, quite different to _Alphitonia_ stipules . And yes are these leaves' undersides white ?
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Hi there https://canberra.naturemapr.org/users/22727, https://canberra.naturemapr.org/users/4030, abread111 We recently discovered young A. littoralis growing around the mature tree and discussed whether to remove them. The tree grows in grassy woodland integrating open forest of mainly Yellow box Blakely's Red Gum with Native Cherry on clay soil.