Crossword Genius

Diet freak on edge, shattered after avoiding carbs essentially (9)

Ross

I believe the answer is:

nutriment

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

'diet' is the definition.
(I've seen this before)

'freak on edge shattered after avoiding carbs essentially' is the wordplay.
I cannot quite understand how this works, but
'freak' could be 'nut' (I've seen this before) and 'nut' is present in the answer.
'edge' could be 'rim' (rim is a kind of edge) and 'rim' is found within the answer.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for nutriment that I've seen before include "Nourishing food" , "Sustenance, nourishment" , "It sustains" , "diet" , "Material providing food" .)

I've seen this clue in The Hindu.
Want a hint initially instead of a full solution? Install my app