Luxurious pub I found in town’s knocked over (9)
I believe the answer is:
sybaritic
'luxurious' is the definition.
(I know that luxurious can be written as sybaritic)
'pub i found in town's knocked over' is the wordplay.
'pub i' becomes 'bari' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'found in' is an insertion indicator.
'town's' becomes 'city's' (I've seen this in other clues).
'knocked over' is a reversal indicator.
'citys' back-to-front is 'sytic'.
'bari' inserted inside 'sytic' is 'SYBARITIC'.
(Other definitions for sybaritic that I've seen before include "Devoted to luxury" , "Hedonistic" , "Affording, enjoying, luxury" .)