Noise from front nearside wheel

[Simondi]

I took my ZT190 out for a drive today and as I turned into a parking space (full left lock) and braked I got a tapping/buzzing/vibrating noise from the left front wheel.
I couldn't see anything obviously wrong and there was no untoward feed back through the pedal. Likewise no lights have come on the dashboard
The noise returns under heavy breaking ( a light touch of the brake to knock a few mph off is ok), breaking at low speed or on turning.

Any ideas chaps

Many thanks as always