It depends. Box 10 indicates you were paid fees as an attorney.
That would indicate you were compensated for your expertise as an attorney.
If this was limited to expert testimony and was an isolated one time situation where you provided this and were compensated for it you can enter your Form 1099-MISC with box 10 and not complete a Schedule C.
If you provide expert testimony on a recurring or aperiodic basis, you should complete a Schedule C and can claim any ordinary and necessary expense you incur in the line of providing ad hoc legal services.
These could include expenses for use of an office in the home if you provide these services from home.
What Are Deductible Business Expenses
