Joe's excited touring sumptuous old city (7)
I believe the answer is:
jericho
'old city' is the definition.
'joe's excited touring sumptuous' is the wordplay.
'excited' indicates an anagram.
'touring' indicates putting letters inside (touring can mean going round).
'sumptuous' becomes 'rich' ('rich' can be similar in meaning to 'sumptuous').
'joe' is an anagram of 'jeo'.
'jeo' enclosing 'rich' is 'JERICHO'.
(Other definitions for jericho that I've seen before include "Its walls fell to Joshua" , "Old city north of Dead Sea, conquered by Joshua" , "Palestinian town" , "Place taken by Joshua" , "City taken by Joshua" .)