Paradise where, having died, alderman transported (9)
I believe the answer is:
dreamland
'paradise' is the definition.
(thesaurus)
'died alderman transported' is the wordplay.
'died' becomes 'd' (abbreviation next to the year of someone's death).
'transported' indicates anagramming the letters.
'alderman' anagrammed gives 'reamland'.
'd'+'reamland'='DREAMLAND'
'where having' is the link.
(Other definitions for dreamland that I've seen before include "Nod, perhaps" , "Utopia" , "Sleep; ideal world" .)