Damage further inside of hall made from marble (9)
I believe the answer is:
marmoreal
'marble' is the definition.
(thesaurus)
'damage further inside of hall' is the wordplay.
'damage' becomes 'mar' (marring is a kind of damaging).
'further' becomes 'more' ('more' can be a synonym of 'further'**).
'inside of' indicates the central letters.
The middle of 'hall' is 'al'.
'mar'+'more'+'al'='MARMOREAL'
'made from' is the link.
(Other definitions for marmoreal that I've seen before include "made of stone" , "stony cold" , "of fine stone" .)