Not quite right Dun in my opinion. It is covered by the regulations.
If the beacon is on the airfield.
Line the departing a/c up and make sure that they have a more than a reasonable rate of climb.
As soon as the aircraft on the approach has crossed the beacon outbound, release the departure aircraft off the same runway with a straight ahead climb.
You now have "reciprocal tracks on the opposite sides of a beacon".
There is now a short period of time to get vertical separation prior to the arriving aircraft turning inbound on the approach.