Sceptic put dollars before money box (7)
I believe the answer is:
scoffer
'sceptic put dollars before' is the definition.
I can't judge whether this definition defines the answer.
'money box' is the wordplay.
'money' becomes 's' (I can't explain this - if you can you should believe this answer much more).
'box' becomes 'coffer' (coffer is a kind of box).
's'+'coffer'='SCOFFER'
Can you help me to learn more?
(Other definitions for scoffer that I've seen before include "he eats very quickly" , "I regard derisively" , "Scornfully derisive person" , "Hungry type" , "she eats fast" .)