Just had that today! Had attributed it to the saddle And gone all around the houses greasing!Check your FD cable at the end isnt sticking out and striking the crank as it rotates.
Hmmm.I have developed the exact same with
My bike.
Real wheel cracking sound when turning,pedalling or not and even does it on the stand.
Pretty sure it’s a spoke. I’ve tightened them all and lubed where they cross over….still there though.
Only noticed it today on last few miles of a bumpy ride.
When I say I’ve tightened spokes, I mean I ensured they arent slack.Hmmm.
I'm assuming that you are new to bicycle repairs; if that is so you may have turned one problem into two by adjusting spoke tensions.
The click or crack you hear is almost certainly metal contacting metal while the rear wheel turns. Put it on your stand and listen/look/feel carefully - you should be able to find the origin of the noise.
By adjusting spoke tensions you will have changed how true your wheel is which may cause you other problems.
I'd respectfully suggest a trip to your bike shop.