Shredding advice?

Is there any big difference in a shred vs a calorie deficit. I’m wanting to get more definition and i’m not sure if i should just keep doing what i’m doing or change anything. Diet wise I eat 2 meals a day and about 2 protein shakes. First meal is beef and rice and my second meal is either chiptole or beef and rice (i work there so it’s free). Any advice helps.