No value keeping in shape (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
oval
'shape' is the definition.
(oval is a kind of shape)
'no value keeping in' is the wordplay.
'in' indicates the answer is hidden within the clue.
'OVAL' is hidden in the letters of 'no value keeping'.
(Other definitions for oval that I've seen before include "Curved shape" , "Where a duck may be broken" , "form of an egg" , "It's egg-shaped for cricketers" , "Ashes Test venue" .)