US city where European money once invested in dodgy casinos (3,9)
I believe the answer is:
san francisco
'us city' is the definition.
(I've seen this before)
'money once invested in dodgy casinos' is the wordplay.
'money once' becomes 'franc' (I've seen this before).
'invested in' is an insertion indicator.
'dodgy' indicates an anagram (a dodgy or wrong order of the letters).
'casinos' with letters rearranged gives 'sanisco'.
'franc' put inside 'sanisco' is 'SAN FRANCISCO'.
'where european' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for san francisco that I've seen before include "Nineteen hundred and six earthquake city" , "Californian city" , "hilly city" , "US city renowned for its cable cars" , "Californian port" .)