Tabby.
At the time you submitted your SF86 how many baddies were on your Credit Report? Did you fully disclose all the baddies on your report?
If no then the problem is bigger than the baddies. Your clearance can be denied for making a materially fradulent statement. Clearances can be denied or revoked even if the statement that was fradulent wouldn't result in a denial. Basically the Federal Goverment takes a very dim view of people who lie when asking to be trusted with secrets.
If you did fully disclose all baddies then exactly what baddies are on your credit report today. It should be possible for the investigator to pull new credit file. You likely can also get the baddies removed if they really are 6 years, 11 months by disputing as "outdated". Generally speaking the CRA will just drop them rather than validate them only to have them drop in less <2 months.
So if you did disclose everything:
1) dispute
2) verify they are gone
3) request Investigator pull new CR
4) ???
5) Profit.