I have already got a flow with 'When an item is created or modified' to add/update a secondary list using the Filter Query (in Get Items) for the 'identifier' of the individual list row. This adds new records or updates current ones successfully.

I now want to be able to 'delete' a list row from the main list and for it to automatically delete it from the secondary list - I'm struggling to figure this out as I don't have the same options/filter options available to me if I use the 'When an item is deleted' trigger
Am I going about this in the right way!?