Crossword Genius

Have such recruits never been to the cookhouse? (3)

Ross

I believe the answer is:

raw

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

'have' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for raw that I've seen before include "Unpleasantly cold and damp" , "Not processed" , "Like a recruit" , "not manufactured" , "Uncooked; immature" .)

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