Get hold of a car part (6)

I believe the answer is:

clutch

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for clutch that I've seen before include "Grip part of the car-engine" , "A set of eggs for hatching - grasp eagerly" , "(Try to) grasp tightly" , "Get hold of" , "Grasp firmly, like engaging car part" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app