Satisfies one that coins have not fallen inside (8)
I believe the answer is:
contents
This clue could be a double definition.
'satisfies one that coins have not fallen' is the first definition.
'contents' can be an answer for 'satisfies' (I've seen this before). I'm unsure of the remainder of the definition.
'inside' is the second definition.
(thesaurus)
Can you help me to learn more?
(Other definitions for contents that I've seen before include "All that's contained" , "List of what's included" , "Things inside" , "What's inside" , "list of ingredients" .)