Deductions & credits

Thank you , I'm disabled and normally no income. I won the SSDI this year with a lump sum back pay. They taxed the lump amount and have the legal fee payout in it on the SSDI tax form. The amount I'm being taxed on the lump sum was obtained by the attorney. Can I subtract the attorney fee from the lump sum? The tax on the lumps sum is a lot.  It was to collect taxable income.