Justifies sending back porridge after half of breakfast, for example (6)
I believe the answer is:
merits
'half of breakfast for example' is the definition.
I can't tell whether this definition defines the answer.
'justifies sending back porridge after' is the wordplay.
'justifies' becomes 'me' (I can't justify this - if you can you should believe this answer much more).
'sending back' says the letters should be written backwards.
'porridge' becomes 'stir' (both are slang terms for prison).
'after' says to put letters next to each other.
'stir' in reverse letter order is 'rits'.
'me'+'rits'='MERITS'
Can you help me to learn more?
(Other definitions for merits that I've seen before include "Virtues of timers" , "Deserves to be praised" , "Legally right or wrong" , "Deserves or warrants" , "Deserves, is worthy of" .)