[jQuery] Selecting radio button unselects text field and vice-versa

[marvster]

I have a radio button group (all the same name) with default
selections, but I also want users to be able to enter a custom value
in a text field.

Is there any way to UN-select a radio button if the user clicks in the
text field, but CLEAR the text field if the user decides to go back
and select a radio button?

Thanks for any help!

Marv