i recently replaced my front disc and pads on an 08 panda with 28000 miles replaced them with brembo parts, nowafter 1200 miles the car has started to make what sounds and feels like grinding when i pull up. i have had both front whells off and had a look and all the brake parts are fine no excesive ware etc. so now i have also noticed a faint whistle liek to bits of metal catching when i depress the clutch it stops and when i re-engage it starts, does this sound like a clutch going or a much bigger problem??

The noise that disappears when the clutch is depressed comes from the gearbox and is not a clutch fault. It is probably not significant but may indicate that the gearbox oil level is a bit low. This is fairly easily checked but you will need to search this section of the forum for details as I have no pictures to post.
If you have a Panda with rear disc brakes then I suspect the noise on braking comes from those rear discs and is normal. If it comes from the front then I cannot help as I have no experience of Brembo brake parts.

Cheers for that, no it has only got drums at rear, i will have to wait and see what happens then