Gravity

I've been training and eating clean(no junk on regular days) on and off for years and I know that in order to get the best body your genetics will allow you must have a good training and diet plan. When I say diet I don't mean eating less, I mean eating clean, eating healty on a regular basis.

My current weight training routine involves three sets with a weight that is quite heavy that I can do for anywhere between 3-10 reps. When I am able to do 10 reps I increase the weight.

My cardio routine has been jogging three times a week around a set course that I do. My cardio routine may change over the next few weeks

A few weeks ago I eat clean and jogged about three times out of that week. I did not lift any weights that week. The thing is according to my scales I put about a pound or two on. I don't understand this because I eat clean and did cardio. Could this weight that I put on be muscle?

I am under the impression that in order to build defined abs one must first burn the fat around the abs before they do any abs exercies. I thought that you had to burn the flab around the abs first before you could build the abs to look more defined. Is this the case? Because I am not doing any abs exercises but am doing cardio and weights, Is this enough? Should I train abs as well as do cardio or should I just do cardio and burn the flab around my abs first before doing any abs exercises?