Crooked mob with cash bagging a new vehicle (6,3)
I believe the answer is:
hansom cab
'vehicle' is the definition.
(I know that hansom cab is a vehicle)
'crooked mob with cash bagging a new' is the wordplay.
'crooked' indicates an anagram (a crooked or disrupted version of the letters).
'with' means one lot of letters go next to another.
'bagging' indicates putting letters inside (bag can mean to obtain or contain).
'new' becomes 'n' (abbreviation as in New Testament NT).
'mob' after 'cash' is 'cashmob'.
'cashmob' anagrammed gives 'hsomcab'.
'a'+'n'='an'
'hsomcab' going around 'an' is 'HANSOM-CAB'.
(Other definitions for hansom cab that I've seen before include "could be transported in this" , "Taxi forerunner" , "Victorian taxi" , "Two-wheeled one-horse carriage" , "In old vehicle" .)