Get a hundred advanced by a trick
I believe the answer is:
con
'a trick' is the definition.
(a con is a fraud or trick)
'get a hundred advanced' is the wordplay.
'get' is a charade indicator (letters next to each other).
'a hundred' becomes 'C' (Roman numeral).
'advanced' becomes 'on' (I can't justify this - if you can you should give a lot more credence to this answer).
'c'+'on' is 'CON'.
'by' acts as a link.
Can you help me to learn more?
(Other definitions for con that I've seen before include "Dupe" , "Swindle in draconian way" , "Have a reason not to" , "Swindle after winning trust" , "Swindle, deception" .)