Well, there might be one thing... There is no firm rule on this, but can I, in Basic Edition, hold an action? Just stand there and wait for the ghoul to try and pass me then hit him? We go through clerics like toilet paper, so maybe sticking to them and waiting for the monster to come is a better strategy than trying to kill them first? Sure, we want to stick to the rules, but is not house-ruling part of D&D?
Lacking the chance to hold an action, strategy might be in order. When there are not official rules for things in old-skool games you do have the opportunity to say what you are doing. Perhaps "I stand by the squishy and taunt the ghoul" or simply "I invite aggro" would work? The voice-in-the-sky has been open to similar actions like this in the past in situations where the rules are unclear, but I have yet to try it in combat.
All I know is that clerics without spells are just fighters without swords, so we need to get one to second level if we plan to survive in this violent world of eldritch horrors!
Just for fun: