A slab can be moved around city (10)
I believe the answer is:
casablanca
'city' is the definition.
(Casablanca is an example)
'a slab can be moved around' is the wordplay.
'be moved' indicates an anagram.
'around' becomes 'ca' (circa).
'a'+'slab'+'can'='aslabcan'
'aslabcan' anagrammed gives 'casablan'.
'casablan'+'ca'='CASABLANCA'
(Other definitions for casablanca that I've seen before include "Moroccan city; film" , "Famous Bogart film" , "romantic movie" , "Moroccan port - 1942 Bogart/Bergman film" , "Foreign counterpart of White House" .)