Skilled opinion needed for present-day depravity (6)
I believe the answer is:
advice
'skilled opinion' is the definition.
'advice' can be an answer for 'opinion' (I've seen this before). I am unsure of the 'skilled' bit.
'present-day depravity' is the wordplay.
'present day' becomes 'AD' (as opposed to BC).
'depravity' becomes 'vice' (I've seen this before).
'ad'+'vice'='ADVICE'
'needed for' acts as a link.
Can you help me to learn more?
(Other definitions for advice that I've seen before include "Suggestion (invited or otherwise)" , "tip" , "Counsel given" , "Counselling" , "Warning - guidance" .)