City shelter succeeded, having duke involved (5)
I believe the answer is:
leeds
'city' is the definition.
(city in England)
'shelter succeeded having duke involved' is the wordplay.
'shelter' becomes 'lee' (as in lee side, the side sheltered from wind).
'succeeded' becomes 's' (genealogical abbreviation).
'having' means one lot of letters go next to another.
'duke' becomes 'd' (abbreviation).
'involved' means one lot of letters goes inside another.
'lee'+'s'='lees'
'lees' placed around 'd' is 'LEEDS'.
(Other definitions for leeds that I've seen before include "Soccer team" , "City of northern England - castle of southern England" , "Yorks city" , "West Yorkshire city" , "W Yorkshire city" .)