said by Maggs:
So will you issue 1099s for the money you pay the writer?
Payee is required to only if compensation exceeds $600 within the tax year. If you're paid $590 and do not receive a copy of the 1099 showing payer has reported it to the IRS then they didn't report it.
As to FICA you pay it if you're filing as self employed (not anyone's employee). Not sure how it works if it's simply additional income.