Find there's one coin too many? (8)
I believe the answer is:
discover
'find' is the definition.
(I know that find can be written as discover)
'there's one coin too many?' is the wordplay.
'there's' is a charade indicator (letters next to each other).
'one coin' becomes 'disc' (I can't justify this - if you can you should believe this answer much more).
'too many?' becomes 'over' (I've seen this in other clues).
'disc' next to 'over' is 'DISCOVER'.
Can you help me to learn more?
(Other definitions for discover that I've seen before include "Find out about divorces" , "Show up" , "Be first to observe" , "Detect, find" , "Be the first to find or see" .)