Shape of both clutch and headlight (4)
I believe the answer is:
oval
'shape' is the definition.
(oval is a kind of shape)
'of both clutch and headlight' is the wordplay.
I cannot quite see how this works, but
'of' could be 'o' and 'o' is present in the answer.
The remaining letters 'val' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for oval that I've seen before include "Courageous" , "Geometric shape" , "It's egg-shaped for cricketers" , "Rounded like an egg" , "Ellipse" .)