DT Cryptic

[pastprime]

Assume 11a is cake but can't justify. Unless 6d rickets is wrong?

[brainiac]

Can't have your cake and eat it !

[teacher1]

clues?

[Alibobs]

The clue is Food eaters cannot have, they say so the answewr is cake

[kayakamina]

Rickets is correct.

(C) Ricket + s

[pastprime]

Thanks, Brainiac.
And sorry, teacher, clue was - food eaters cannot have, they say - c?k? - clever clue - too clever for me! Could only think of Marie Antoinette, which wasn't a help......