Arcade currency (6)
I believe the answer is:
tokens
'arcade currency' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tokens that I've seen before include "Disks as substitute for coins" , "Signs or symbols of something" , "Keepsakes or vouchers" , "They serve as representations of payments or feelings" , "Symbols as of esteem - or vouchers" .)