To clear or de-select a ‘yes/no‘ or ‘radio button‘ control in the Rules Builder, select Set Value as the Action and then set the Value or Field section to ‘clear‘ or ‘empty‘. When the rule runs it will clear any selection of the yes/no control or radio button control.
To clear a text field or a number field, set the value to blank, i.e. leave the Set Value section blank. This will clear the field when the rule runs.