If it's that annoying replace the anti-rattle clips. They will wear out after a while. Dealerships usually keep a lot in stock.

 

if you're curious about your wiggle in your clutch or brake lever, look in your service manual. in there you'll find a parts breakdown and it shows the part in there. easy to fix as long as you remember that the brake light switch is operated by the front lever too and take the proper measures to avoid damaging the plunger. there is a correct procedure for that.