My thyroid nodule biopsy has come back clear BUT I have been called back to see my doctor within a week?

No, it does not mean the test was wrong, but it may mean that something else was detected during the test. It may affect your decision, the chances of success or possibly even the need to have the surgery. I know it's a pain to wait, but doctors want to inform you in person, partly because it's their job, and partly to judge how to tell you whatever the news is. Almost any health news anymore is a shock.