Pulling back in a steep turn in which the nose is dropping (spiral dive) will tighten and steepen the spiral. The 'G' loading and the speed will rise alarmingly!
You'll need to take off most of the bank (with co-ordinated rudder and power reduction), regain the correct attitude, then roll the bank back on with associated power. Even in a glider you'll need to roll off the bank before restoring the correct attitude, else you'll just tighten the spiral.
Never mind instrument flight, nothing sharpens your handling skills like aerobatics does. And max rate level steep turns are a good test of elevator, aileron, rudder, and power co-ordination.