If the purported verdict is defective, the court may direct it to be reformed. If it is incomplete, or not responsive to the questions contained in the court's charge, or the answers to the questions are in conflict, the court shall in writing instruct the jury in open court of the nature of the incompleteness, unresponsiveness, or conflict, provide the jury such additional instructions as may be proper, and retire the jury for further deliberations.
Tex. R. Civ. P. 295