Jacob,
I want to first fully understand your situation. Is "action" actually coded with space character between "&=" symbols and the "action" code itself as you described in your email or is it coded without a space character as in "&=action"? The reason I am asking is because currently both FREQ and MLU exclude anything that starts with "&" symbol, but CLAN stops at a space character. If you have a space character between "&=" and "action" as in "&= action", then I am afraid there nothing can be done except changing your data files to remove that space character. Fortunately that change can be made easily and automatically with some text editors like BBEdit or even with the following CHSTRING command in CLAN:
chstring +s"&= " "&=" -w t.cha
If there is no space character between the "&=" and the "action" code as in "&=action, then please email to me a sample data file and CLAN command line that will show the problem you are having.