Can I be arrested for not showing up to a civil hearing against a creditor in the state of Massachusetts?

It is unclear from your question what the hearing is for. If you have received a summons for a Supplementary Process (SP) hearing under M.G.L.A. 224 § 15 - where a judgment creditor is allowed to examine the judgment debtor under oath about the debtor's income and assets - then you have to appear if the summons was properly served - i.e., by an officer qualified to serve civil process and served at least seven days before the hearing either in-hand or by leaving a copy at the debtor's last and usual place of abode. Assuming proper service for an SP hearing, then failure to appear by the debtor could result in a bench warrant issuing for the debtor's arrest. If your hearing is an SP hearing under M.G.L.A. 224 § 15, you should not ignore the summons. You might also give some thought to consulting with a bankruptcy lawyer before you do go to your hearing.