The reason you hear a clinking noise when the water faucet is turned on is most likely due to a loose washer.
Taking apart the faucet and removing the loose washer should fix the problem.
Make sure to reassemble the faucet correctly and tightly to prevent this from occurring again.
If you take apart the faucet and can’t get the screw out, turn the water on and that will help flush the faucet.
If you don’t feel comfortable with this procedure, then it’s best to call a professional plumber.
Plumbing problems can, sometimes, make you think that your home is haunted. Toilets may mysteriously flush, drains may bubble and gurgle, and faucets may clink. Don’t worry, you’re not living with Casper, these are all things that a professional plumber can handle.