Homer, a simple chap, goes round the outskirts of Paris (7)
I believe the answer is:
simpson
'homer a simple' is the definition.
The definition suggests a singular noun which matches the answer.
'chap goes round the outskirts of paris' is the wordplay.
'chap' becomes 'simon' ().
'goes round' means one lot of letters goes inside another.
'the outskirts of paris' becomes 'PS' (first and last letters of 'Paris').
'simon' placed around 'ps' is 'SIMPSON'.
Can you help me to learn more?
(Other definitions for simpson that I've seen before include "One of cult cartoon family" , "Family with yellow faces in animated sit-com" , "Edward's betrothed" , "Wallis - (Edward VII)" , "Homer or Bart" .)