Debauched last month with a little depression (8)
I believe the answer is:
decadent
'debauched' is the definition.
(I've seen this before)
'last month with a little depression' is the wordplay.
'last month' becomes 'dec' (short for December, last month of the year).
'with' means one lot of letters go next to another.
'little depression' becomes 'dent' (dent is a kind of depression. I am not sure about the 'little' bit.).
'dec'+'a'+'dent'='DECADENT'
Can you help me to learn more?
(Other definitions for decadent that I've seen before include "Abandoning principles" , "Marked by excessive self-indulgence and moral decay" , "Decanted, being corrupt and immoral" , "Fin-de-sicle" , "Morally corrupt" .)