Enter, thus putting me in the money (4,2)
I believe the answer is:
come in
'enter thus' is the definition.
'come in' can be an answer for 'enter' (synonyms). I am not sure about the 'thus' bit.
'me in the money' is the wordplay.
'in the' indicates putting letters inside.
'money' becomes 'coin' (I've seen this before).
'me' going inside 'coin' is 'COME IN'.
'putting' is the link.
Can you help me to learn more?
(Other definitions for come in that I've seen before include "arrive" , "Enter - from the cold?" , "Enter, don't stay outside" , "Enter - you're invited" .)