In its stead, I have fish (6)

I believe the answer is:

plaice

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

'fish' is the definition.
(plaice is a kind of fish)

I can't explain the remainder of the clue.

(Other definitions for plaice that I've seen before include "Edible flatfish" , "Flatfish; sounds like put" , "Flat fare" , "Important food fish" , "Tasty flatfish I place here" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app