Name for seating spread around ancient city (9)
I believe the answer is:
signature
'name' is the definition.
(I know that signature is a type of name)
'seating spread around ancient city' is the wordplay.
'spread' indicates an anagram.
'around' is an insertion indicator.
'ancient city' becomes 'ur' (ancient Sumerian city state).
'seating' anagrammed gives 'signate'.
'signate' enclosing 'ur' is 'SIGNATURE'.
'for' acts as a link.
(Other definitions for signature that I've seen before include "X-WORD ?" , "(In music) the sharps or flats that follow the clef and indicate the key" , "Squiggle perhaps" , "distinctive style" , "Indication of key" .)