Is DD-X developer ok to use for Acros 100? Also, I would like to control the contrast. Can someone point me to a development time chart that relates to the amount of contrast?
It should be (more than) fine, yes. Massive Dev Chart and FilmDev both have some suggestions for this particular combination (the latter with sample photos). Plus, there's a lot of discussion on various forums, if you google "acros in dd-x".
As for control of contrast, you could try to extrapolate from the Acros data sheet, which gives characteristic curves for various developers (though ultimately you'd have to run your own tests to find out how the film behaves in DD-X). Looking at the G-bar-against-time plot in section 14 of that document, a reasonable first guess would be to expect an increase of 0.1 in G-bar for every added 2 minutes of development time (in 20°C).