For 9 holes you only have a couple choices. There is a couple executive courses in Davenport. Deer Creek is just south of I4 on 27 and Polo Park is right on 27 just south of 192. If you can hack it (no pun intended) Highlands Reserve is in great shape right now and isn't too bad a price if you go afternoons.
Orange County National is a beautiful course and has a 9 hole short course as well. It's just a bit further out 192 and off of Avalon Road.