I don’t believe you can do it out of the box with an Access database. If it is possible it will require the Quovadx ODBC drivers.
You might find more information here
A third party option is this (really expensive and no Tcl support)
Depending on the purpose of the database you could use Postgres or Mysql on AIX, then use Access as a user frontend to the databases. Both of these databases have Tcl extension to make access from Cloverleaf real easy plus it would be easily upgradable in the future. We use this method for connecting to our support database which houses all of our interface stats and confirgurations.
