Yes, it is possible to build a chorus, flanger, or short delay with this chip. But I don't know what simple means to you. You need a clock generator (usually mn3102, 4047, 4046, or 4007), and some op amps for clock noise filters and buffers. Often these circuits will use compander chips for making the circuit less noisey.
Here is a page describing a really cool chorus project done by a member of this list (if I remember correctly).http://[url=http://mypeoplepc.com/members/scottnoanh/birthofasynth/id9.html]http://mypeoplepc.com/members/scottnoan ... h/id9.html
Some are simpler than others, and it seems like this chip is really good for flangers.