From that description, we can't pick an actuator for you. You need to know what distance, what leverage, what mounting points and more.
You will need a motor shield to drive the actuator. Almost any shield will probably have the current capability that your actuator requires. You will also need a power supply with sufficient current output.
Then what else do you expect the Arduino to do? Is there a button to control this thing? A switch so it knows when the actuator lifted far enough? Maybe an LCD display or more sensors?