Could be a few things...I'd check the CV joint. Worn strut mounts maybe. Also subframe knock can be an issue - there are spacer bolts available as a fix for this.
^ Pretty much nails it there.
If it is the CV you'll no doubt have a split boot which you can see by grease all over the the cv boot/arch liner, easier to check by removing wheel, but if dirt has ingressed to the point of making a noise, then the joint is knackered.
After replacing the offside CV, I now make a point of inspecting the wheel arches prior to washing for any grease then you can make a mini repair before changing the boot out (bike innner tube and cable ties doubled will keep out the dirt, but don't leave it long).
I've got subframe knock atm, and have some of the upgraded bolts to go in, most noticeable with a heavy brake then heavy acceleration.