I’m 6ft 1, 205 lbs, very little muscle definition, almost all of my fat is centered around my abdominal area (chest, stomach, sides) To address this, I want to start a serious weight training program (to up my SMV), but most of the in-depth info about weights are geared towards guys trying to bulk.

I play basketball for cardio, but how effective is weight training on your physique while in a calorie deficit? (What will it do?)

Based on the info I provided about my current physique, what are the main lifts I should focus on?