Wild cereal? (4)

I believe the answer is:

oats

'wild cereal?' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for oats that I've seen before include "Cereal for porridge" , "Grains or porridge" , "Food for horses and Scots (said Dr Johnson)" , "Sow wild ones in disreputable youth" , "Cereal food for horses" .)

I've seen this clue in the Evening Standard.

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