From the main table when you load up
Press options button
Go down to challenges
Choose perfect potter
I wouldn't move the cue ball I would hit it straight on as hard as possible, you then have to hit each red ball in to pockets until the table is clear, first ball you miss you fail the challenge and you have to start again, only things I can say are take it slow and easy, don't take chances on shots you aren't 99% sure on potting.
Trophy will only unlock once you have cleared the table for the first time.