From that moment, gluttony possibly leads to certain excesses (5)

I believe the answer is:
since
'from that moment' is the definition.
'since' can be an answer for 'from' (I've seen this in another clue). I'm not sure about the remainder of the definition.
'gluttony possibly leads to certain excesses' is the wordplay.
'gluttony possibly' becomes 'sin' (gluttony is a kind of sin).
'leads to' indicates taking the first letters.
The initial letters of 'certain excesses' is 'ce'.
'sin'+'ce'='SINCE'
Can you help me to learn more?
(Other definitions for since that I've seen before include "From that time one" , "Because; ago" , "Seeing that" , "in the past" .)
