Thank you for the quick reply Steve and Healey Nut.
I first tried tapping gently with plastic hammer, and it worked.
Now that I have it off, I'll open up the trafficator. It's not snapping back as it should.
Just as I suspected, it's a bit gummed up.
Thankfully, I've done this project before.
By the way, there is an easy way to remove the trafficator, with out pulling the entire wire harness out of the tube.
Remove the wires at the trafficator, leave the wires in the tube.