Where, in Wales, to start going broke! (5)
I believe the answer is:
gwent
'where in wales to start going broke' is the definition.
The definition suggests a singular noun which matches the answer.
'where in wales to start going' is the wordplay.
'where in wales' becomes 'went' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'start' suggests taking the first letters.
The initial letter of 'going' is 'g'.
'went' after 'g' is 'GWENT'.
Can you help me to learn more?
(Other definitions for gwent that I've seen before include "Preserved county of Wales" , "Blaenau - is a Welsh county borough" , "part of Wales once" , "former Welsh county" , "Region of SE Wales" .)