Persuade escort to entertain foreign nobleman (6)
I believe the answer is:
seduce
'persuade' is the definition.
(seducing is a kind of persuading)
'escort to entertain foreign nobleman' is the wordplay.
'escort' becomes 'see' ('see' can be a synonym of 'escort').
'to entertain' means one lot of letters goes inside another.
'foreign nobleman' becomes 'duc' (I can't explain this - if you can you should give a lot more credence to this answer).
'see' going around 'duc' is 'SEDUCE'.
Can you help me to learn more?
(Other definitions for seduce that I've seen before include "mislead" , "Charm - deprave" , "Lead astray, tempt" , "Persuade to be false" , "Debauch" .)