Joke about educated woman having strict morals (7)
I believe the answer is:
puritan
'strict morals' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'joke about educated woman' is the wordplay.
'joke' becomes 'pun' (pun is a type of joke).
'about' indicates putting letters inside.
'educated woman' becomes 'rita' (ref to play and film Educating Rita).
'pun' placed around 'rita' is 'PURITAN'.
'having' is the link.
Can you help me to learn more?
(Other definitions for puritan that I've seen before include "Strictly moral person" , "Upright" , "Prude" , "Dour Protestant" , "very proper person?" .)