Where to find mustard jar originally belonging to 60s singer (5)
I believe the answer is:
dijon
'where to find mustard jar originally belonging to 60s singer' is the definition.
The definition suggests a singular noun which matches the answer.
This is all the clue.
Can you help me to learn more?
(Other definitions for dijon that I've seen before include "French city renowned for mustard" , "French city associated with mustard" , "Capital of the Burgundy region of eastern France" , "Source of mustard" , "French home of mustard?" .)