Hi, Ken. Unfortunately, the same solvent, acetone, that works on ACC glue, also known as Super Glue or Crazy Glue, will also eat most plastics. If you try to hold the tube together with wire or a rubber band, the acetone will move by capillary action under the band or wire and eat more there. The acetone, as it dissolves the glue, will let the soft glue and the soft plastic mix and you will not get anything to hold.
You may be able to mechanically remove the glue with a sharp knife but that reduces the chances of getting a good glue joint in the future also. You should look at replacing the tube.