King's predecessor in restaurant listened to old citizen (7)
I believe the answer is:
burgher
'citizen' is the definition.
(I've seen this before)
'king's predecessor in restaurant listened to old' is the wordplay.
I cannot really understand how this works, but
'king' could be 'er' (abbreviation for Edward Rex, various English kings) and 'er' is present in the answer.
The remaining letters 'burgh' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for burgher that I've seen before include "Citizen of a town or city" , "Freeman of the city" , "Medieval city trader" , "Bourgeois" , "Man about town" .)