I'd like to tell you that the Olympic lifts will help your big 3, but in reality they wont. They wont hurt, but they wont help either.
Thinking that the clean will help your deadlift get stronger off of the floor shows a bad comprehension of how a clean is done. A proper clean is NOT done explosively from the floor. That is bad technique.
In a proper clean the 1st pull (from floor to above knees) is done under control, sometimes even slowly. The acceleration/explosiveness occurs much higher, at about the upper 3rd of the quads in the clean and at the hips in the snatch.
If the clean strengthen anything in the pull it is thus the finish of the lift. But even then, not that much since the weights will be low relative to your deadlift numbers.