If an A, or Q lands on the river, woudl that clear things up for you? lol
If a 4th club lands , would you be more cautious?

of course.
If a blank falls you are no worse off than on the turn.

The call gives you more information.
The situation is unclear, so more information is good. Call the turn.
With a blank, I'd call the river for 1/2 pot bet or less.