If you're heavy in a twin and you lose one engine early, it is quite critical, and you must get the flaps up and accelerate as quickly as possible. But rather than do a dangerous procedure like a low level circuit on one engine, I think you should rely on the fire resistance of the aeroplane and climb away and retract flap as soon as possible. You must climb to 1000' to do so, then not retract flap in a turn, so you are likely to end up flying a reasonable distance before turning downwind. Sometimes you may have to accelerate, then turn, then retract flap. It's very difficult in a twin, even more critical in a heavy 4 engine jet with 2 out on one side.