What is the correct ATC phraseology for tower to clear a practice approach? If you have an aircraft (training flight) that is doing practice instrument approaches and ATC is notified that they will fly the approach and then go missed, what is the correct phraseology for the tower? "Cleared to land" or "cleared missed approach"? Where can I find this information in a document?
If you want to go missed on a practice instrument approach rather than land, the controller will clear you for a "low approach".

See here for more on the legality of low approaches.