It sometimes appears in Illustrator CS6, only with some text:
It’s annoying me. How can I remove it?
Answer
Shows the text is longer than the text frame area. You have two possibilities:
- Increase the frame size to see the hidden text and delete it to make the red icon disappear
- Link the frame to another one clicking the red cross icon and click to another place in the document or another text frame
Attribution
Source : Link , Question Author : markzzz , Answer Author : Community