In NZ a conditional clearance may be issued provided that there is reasonable assurance that by the time the arriving aircraft crosses the threshold to land, or departing aircraft commences their take off roll, the appropriate RWY sep or reduced RWY sep will exist. The responsibility is always with the controller. Phraseology is "B737 departing, RWY 36 cleared to land".
In the US they say number 3 following 737 cleared to land. Don't think that's ICAO but what in the US is?