A tail rotor stuck at high power will allow a slower speed approach and possibly a hover, but it is possibly unsafe to try to achieve it. Once the aircraft begins to rotate in the hover, the only way out is to chop the power, very difficult if single pilot and the ECLs are in the roof panel. It is likely to end in a heavy landing at least.
Which is why a pilot shouldn't try to come to the hover in this situation. A gentle approach, with the aircraft nose just out to the retreating blade side to a running landing at low groundspeed is what should be aimed for.
If the nose comes round towards 12 o'clock on the approach, the cyclic should be checked forward to prevent any further speed reduction. If the nose is kept offset a little, the final collective movement to cushion the touchdown will also bring the nose round to straight ahead for a safe touchdown at low speed with nil yaw.
However, all aircraft have different characteristics so the top priority must be to confirm the manufacturer's advice!