"Too heavy for your height" as in they won't start you on T until you lose some body fat? Or as in it's something that needs to be monitored but they're starting you on T anyway? And, is this endo operating purely on weight/BMI, or are they taking body fat percentage into account?
My suggestion would be to start lifting weights. As Nygeel said, there's no way to do "spot reduction" (target fat loss from a specific region), although many marketing campaigns promise otherwise. If you want a bulkier build for masculine appearance, focusing on putting on muscle would be best. Much healthier.