A coin from each one (6)
I believe the answer is:
apiece
'from each one' is the definition.
(synonyms)
'a coin' is the wordplay.
'coin' becomes 'piece' (I've seen this before).
'a'+'piece'='APIECE'
(Other definitions for apiece that I've seen before include "A head" , "For or by each one of group" , "for everyone" , "Per person" .)