Coin on the Continent (4)
I believe the answer is:
euro
'coin on the continent' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for euro that I've seen before include "Spanish currency unit" , "Major currency" , "Currency since 2002" , "Coin issued Jan first, two thousand and two" , "France's unit of currency" .)