Less prudent breakfast option (6)
I believe the answer is:
rasher
'less prudent breakfast option' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
This is all the clue.
Can you help me to learn more?
(Other definitions for rasher that I've seen before include "A tasty slice of bacon" , "Piece of bacon (6)" , "A bit of bacon" , "Thin strip of bacon" , "taking more unnecessary risks?" .)