Trifle with attorney before midnight (5)
I believe the answer is:
today
'before midnight' is the definition.
I can't judge whether this defines the answer.
'trifle with attorney' is the wordplay.
'trifle' becomes 'toy' (I've seen this in another clue).
'with' means one lot of letters goes inside another.
'attorney' becomes 'D.A.' (abbreviation for District Attorney).
'toy' enclosing 'da' is 'TODAY'.
Can you help me to learn more?
(Other definitions for today that I've seen before include "Current period of 24 hours" , "The present time or age" , "Modern times" , "Yesterday's tomorrow" , "Nowadays" .)