Wise man perhaps describing French duke's wolf (7)
I believe the answer is:
seducer
'wolf' is the definition.
(I've seen this before)
'wise man perhaps describing french duke's' is the wordplay.
'wise man perhaps' becomes 'seer' (I can't explain this - if you can you should believe this answer much more).
'describing' indicates putting letters inside (describe can mean to form the outline of).
'french duke' becomes 'duc' ('duke' in French).
'seer' going around 'duc' is 'SEDUCER'.
Can you help me to learn more?
(Other definitions for seducer that I've seen before include "One who takes advantage of the opposite sex" , "Casanova, for example" , "Womaniser, libertine" , "Don Juan" , "Wolf" .)