Well-mannered partner of Lady Moray? (7)
I believe the answer is:
genteel
'well-mannered' is the definition.
(I've seen this in another clue)
'partner of lady moray?' is the wordplay.
'partner of lady' becomes 'gent' (I can't justify this - if you can you should believe this answer much more).
'moray?' becomes 'eel' (moray is a kind of eel).
'gent'+'eel'='GENTEEL'
Can you help me to learn more?
(Other definitions for genteel that I've seen before include "Affectedly polite and refined" , "Well mannered" , "Marked by refinement in taste and manners" , "Courteous, well-bred" , "Overly polite or refined" .)