Stapleton of "All in the Family” (4)
I believe the answer is:
jean
'stapleton of all in the family' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for jean that I've seen before include "Englishwoman having pronounced difference" , "Frenchman" , "Woman" , "Girl's name" , "Heavy cloth, denim" .)