When the clutch is depressed with any gear selected, I can hear a metallic rotating noise coming from around the bell housing.

When setting off in first gear, the car shudders but once the clutch pedal is fully disengaged the car appears to drive normally, albeit a bit difficult to change gear.

The car is a 1.3 2001 Ford Fiesta Flight. I hope you can help me!

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One garage said it could be a bearing in the gearbox.
Another garage is fairly confident it is the clutch.